A practical guide to Cambridge IELTS 1 to 21 and other preparation books (Free PDF Download)
Choosing IELTS preparation books becomes easier when you know what you need to improve. A student learning how to organise an essay needs different support from someone who already writes well but runs out of time in Reading.
For most learners, a useful starting combination is The Official Cambridge Guide to IELTS and a recent Cambridge IELTS practice book in the correct test version. Beginners may benefit from a foundation course first. If grammar or vocabulary repeatedly causes mistakes, add one book that addresses that weakness.
This guide compares the main options, explains the complete Cambridge IELTS 1–21 series, and shows you how to turn practice into progress. You do not need to work through every book to prepare well.
Book information checked on 17 October 2026. Recommendations reflect the purpose, level and contents of each resource; no book guarantees a particular band score.
In this guide
- Best IELTS preparation books at a glance
- How to choose the right IELTS book
- Cambridge IELTS books 1 to 21 explained
- Other recommended IELTS preparation books
- Which books suit your preparation stage
- How to study with IELTS books
- A practical four week study structure
- Common mistakes when using IELTS preparation books
- Frequently asked questions about IELTS preparation books
- Choose your next study step
- Sources and further reading
Best IELTS preparation books at a glance
Use this table to identify your main need before choosing a resource.
| Your main need | Recommended starting point | Why it fits |
|---|---|---|
| Understand the test and study independently | The Official Cambridge Guide to IELTS | Combines skills lessons, test strategies and practice for Academic and General Training. |
| Practise with recent authentic test material | Cambridge IELTS 19, 20 or 21 | Provides complete practice tests in separate Academic and General Training editions. |
| Learn how to approach Academic questions | IELTS Trainer 2 Academic | Begins with guided tests before moving to independent practice. |
| Build confidence before full tests | Collins Get Ready for IELTS | Offers preparation for lower-level learners through separate skills books. |
| Follow a structured Academic course | Mindset for IELTS or Complete IELTS | Organises language development and exam preparation into a course. |
| Improve sentence accuracy | IELTS Grammar for Bands 6.5 and above | Connects grammar explanations with IELTS-style practice. |
| Develop vocabulary systematically | IELTS Vocabulary Up to Band 6.0 or IELTS Vocabulary for Bands 6.5 and above | Provides contextual vocabulary practice at different levels. |
| Add another source of all-skills practice | Barron’s IELTS Premium | Covers both test versions and includes model tests and audio. |
These recommendations serve different purposes. Start with the row that describes your biggest difficulty, then add a recent practice book when you are ready to apply what you have learned.
How to choose the right IELTS book
Match the book to your test version
IELTS Academic and IELTS General Training share the Listening and Speaking tests, but their Reading and Writing tests differ. Academic Writing Task 1 involves describing visual information, such as a chart, table, diagram or process. General Training Writing Task 1 involves writing a letter.
Choose a practice book labelled Academic or General Training to match your booking. A course focused on Academic IELTS can still help a General Training learner with language, but it does not replace preparation for General Training Reading and letter writing.
Match the support to your current ability
If you struggle to understand the instructions or most of a reading passage, begin with language lessons and shorter exercises. Repeated full tests can show that you are struggling without teaching you how to improve.
If you understand the material but lose marks through timing, spelling or question interpretation, guided practice and careful test review may be more useful. Choose a book based on the work you can understand now, as well as the score you hope to achieve.
Check answers and audio before starting
For independent study, look for an edition with answers, recording scripts and access to the correct Listening audio. Some books have separate editions with and without answers, and digital resources vary between packages.
Check that you can use the resources attached to your particular copy. An old access code, missing audio or an unsupported CD-ROM can make a study plan difficult to follow.
Cambridge IELTS books 1 to 21 explained
The numbered Cambridge IELTS series is primarily a collection of practice material. Each volume provides another set of tests. The numbers identify volumes, not English levels: Cambridge IELTS 21 is not a Band 9 course, and Cambridge IELTS 1 is not a beginner course.
The series also changes in how it packages the two test versions:
- Cambridge IELTS 1–10: earlier combined volumes with Academic practice and additional General Training Reading and Writing material. Check the contents of the individual volume rather than assuming it contains two complete parallel courses.
- Cambridge IELTS 11–21: separate Academic and General Training editions, with four complete tests in the selected edition. Make sure the version on the cover matches the test you will take.
Answer keys and recording scripts make these books useful for reviewing Listening and Reading. However, completing tests does not provide personalised assessment of your Writing or Speaking.
The complete Cambridge IELTS 1 to 21 list
The study priorities below are our recommendations for someone preparing now. They are based on recency and the need to preserve unfamiliar tests for progress checks, rather than a claim that certain volumes are easier or harder.
| Cambridge volume | Edition format | Suggested role in your preparation |
|---|---|---|
| Cambridge IELTS 1 | Earlier combined volume | Optional older material; check tasks against the current format. |
| Cambridge IELTS 2 | Earlier combined volume | Optional older material; check tasks against the current format. |
| Cambridge IELTS 3 | Earlier combined volume | Optional older material; check tasks against the current format. |
| Cambridge IELTS 4 | Earlier combined volume | Optional older material; check tasks against the current format. |
| Cambridge IELTS 5 | Earlier combined volume | Additional language and question practice if already available. |
| Cambridge IELTS 6 | Earlier combined volume | Additional language and question practice if already available. |
| Cambridge IELTS 7 | Earlier combined volume | Additional language and question practice if already available. |
| Cambridge IELTS 8 | Earlier combined volume | Additional language and question practice if already available. |
| Cambridge IELTS 9 | Earlier combined volume | Additional language and question practice if already available. |
| Cambridge IELTS 10 | Earlier combined volume | Additional practice before using your newest unfamiliar tests. |
| Cambridge IELTS 11 | Separate Academic and General Training editions | Extra complete tests in your chosen version. |
| Cambridge IELTS 12 | Separate Academic and General Training editions | Extra complete tests in your chosen version. |
| Cambridge IELTS 13 | Separate Academic and General Training editions | Extra complete tests in your chosen version. |
| Cambridge IELTS 14 | Separate Academic and General Training editions | Extra complete tests in your chosen version. |
| Cambridge IELTS 15 | Separate Academic and General Training editions | A useful practice pool alongside more recent volumes. |
| Cambridge IELTS 16 | Separate Academic and General Training editions | A useful practice pool alongside more recent volumes. |
| Cambridge IELTS 17 | Separate Academic and General Training editions | A useful practice pool alongside more recent volumes. |
| Cambridge IELTS 18 | Separate Academic and General Training editions | A useful practice pool alongside more recent volumes. |
| Cambridge IELTS 19 | Separate Academic and General Training editions | High priority for recent practice and progress checks. |
| Cambridge IELTS 20 | Separate Academic and General Training editions | High priority for recent practice and progress checks. |
| Cambridge IELTS 21 | Separate Academic and General Training editions | The latest numbered volume checked for this guide. |
Cambridge IELTS 19
Cambridge IELTS 19 remains a useful recent option, especially if you already have access to it. Select the Academic or General Training edition and use its four tests to identify recurring difficulties across the skills.
You might use one unfamiliar test as a starting assessment, then work through selected tasks while improving weak areas. Keep at least one test untouched for a later progress check. There is no need to abandon an unfinished book simply because a newer volume exists.
Cambridge IELTS 20
Cambridge IELTS 20 provides another four complete tests in the selected test version. It is a practical next step when you need fresh material after working through another recent volume.
The publisher’s listed Academic package includes Listening audio, example Speaking videos, answer keys with extra explanations and sample Writing answers. Check the package details and access instructions for your copy, because printed and digital components can vary.
When reviewing sample Writing, compare how the response selects information and develops ideas. Avoid treating every published response as a Band 9 model; read any accompanying score or examiner comments.
Cambridge IELTS 21
As of October 2026, Cambridge IELTS 21 is the latest numbered volume verified for this guide. Cambridge lists both Academic and General Training editions, each containing four complete tests.
It is a sensible option when you want a recent collection of unfamiliar practice material. Its main benefit is the opportunity to practise and review another set of tests; a new volume does not predict the questions you will receive on test day.
If your exam is approaching, save some of its tests for timed practice. If you are still learning the basics, work through relevant skills lessons first so that you can learn more from each test.
Are Cambridge IELTS 1 to 18 still useful?
Yes, although their role depends on their age and what you already have. Cambridge IELTS 15–18 can form part of a useful practice collection. Volumes 11–14 provide additional tests in separate versions, while earlier books can supply extra language and question practice.
Treat the oldest volumes as supplementary material. Instructions, media and aspects of test presentation may differ from current arrangements. Use current official IELTS guidance to confirm the format and timing of your booked test.
You do not need to complete the books in numerical order. A workable approach is to learn the skills, practise with material you already have, and reserve unfamiliar tests from recent volumes for assessment.
Other recommended IELTS preparation books
The Official Cambridge Guide to IELTS
Best for understanding the test and organising independent study.
This guide covers Academic and General Training IELTS. It combines explanations and skills development with eight complete practice tests. Its authors are Pauline Cullen, Amanda French and Vanessa Jakeman.
It is a strong starting point when you can complete exercises but do not understand why particular approaches work. The skills sections help you examine question types and the language needed to answer them.
Work through the lesson connected to your weakness before attempting more tests. For example, if you repeatedly choose incorrect Reading headings, practise identifying the main idea of a paragraph before doing another full Reading test.
Learners with limited English may still need simpler language work or teacher support alongside the guide. A comprehensive reference can be useful at several levels without every page being equally easy to study alone.
IELTS Trainer 2 Academic
Best for guided Academic practice.
IELTS Trainer 2 Academic contains six practice tests. The first two include step-by-step guidance, and the remaining tests give you opportunities to apply the approach more independently.
This structure suits learners who ask, “What should I do first when I see this question?” Guidance is most valuable when you actively use it: explain the steps in your own words, try them on another task, and check whether they help.
Give the guided tests enough time. Reading a strategy quickly and moving straight to the next test makes it difficult to judge whether you have learned the skill.
The Academic edition focuses on Academic tasks. General Training candidates should use resources that explicitly include their Reading and Writing requirements.
Mindset for IELTS
Best for following a structured Academic course.
Mindset for IELTS combines skills development, language work and exam preparation. The course has a Foundation level and Levels 1, 2 and 3. Cambridge identifies target bands of 5.5, 6.5 and 7.5 for Levels 1, 2 and 3 respectively.
Those labels describe the course targets; they are not guaranteed outcomes or a reason to skip directly to Level 3. Choose a level whose explanations and exercises you can understand with a manageable amount of support.
The course is useful if you prefer a sequence of lessons to deciding what to study each day. It can also support classroom learning. For self-study, check that you have the answer support and digital access needed for your edition.
General Training learners can benefit from its language work but need separate preparation for General Training tasks.
Complete IELTS
Best for Academic learners who want a course organised around band ranges.
Complete IELTS is an Academic preparation course with three main ranges: Bands 4–5, Bands 5–6.5 and Bands 6.5–7.5. It combines topic-based units with language development and exam practice.
It is a useful choice when you want grammar, vocabulary and test skills to develop together. For example, language learned in a unit can feed into the writing or speaking you do afterwards, making revision more purposeful.
Use the band ranges to help choose suitable material, then assess progress through actual performance. Finishing a coursebook does not establish a band score. If you study alone, select a version with answers and confirm how to access its listening materials.
Collins Get Ready for IELTS
Best for lower-level learners who find full tests overwhelming.
The Get Ready for IELTS series includes separate Listening, Reading, Writing and Speaking books. It is designed for lower-level preparation; for example, the publisher places its Speaking book at approximately CEFR A2–B1.
The shorter, guided work can help you develop the language and task familiarity needed before attempting full tests regularly. Start with the skill that causes the greatest difficulty, while continuing some practice in the other three.
If you struggle to produce a complete spoken answer, practise a short response, listen to or read the support material, and try again using your own ideas. Gradually increase the length and independence of your responses.
These are preparation resources for building a foundation. Check the Reading and Writing coverage carefully if you are taking General Training.
IELTS Grammar for Bands 6.5 and above
Best for recurring grammar problems that affect your answers.
This book by Diana Hopkins and Pauline Cullen was previously titled Cambridge Grammar for IELTS. It provides grammar explanations and practice connected to IELTS, with support for Academic and General Training learners.
Use it to address errors you actually make. If you repeatedly switch tenses when describing past events, study the relevant unit and then revise a piece of your own writing. If sentence boundaries cause problems, work on those before adding more complicated structures.
The title does not mean every exercise is restricted to students already scoring 6.5. Let your needs and your understanding of the material guide your use of the book.
Grammar work is most useful when it improves your original writing and speech, as well as your answers to exercises.
IELTS vocabulary books by Pauline Cullen
Best for learning vocabulary through context and practice.
Two relevant titles are IELTS Vocabulary Up to Band 6.0 and IELTS Vocabulary for Bands 6.5 and above. Their earlier titles were Cambridge Vocabulary for IELTS and Cambridge Vocabulary for IELTS Advanced.
Check the title and contents before treating an older and newer name as two entirely different courses. Choose the level that lets you learn meaning, spelling, word forms and common combinations with enough understanding to use them accurately.
Keep a small vocabulary record with a useful phrase, its meaning and a sentence of your own. For instance, learning “reduce traffic congestion” gives you more information about natural usage than recording “congestion” alone.
The higher-level book is useful for extending academic vocabulary. It should support clear expression; unusual words are not automatically better choices.
Barron’s IELTS Premium
Best for additional all-skills preparation after you have chosen a main resource.
Barron’s IELTS Premium by Lin Lougheed covers Academic and General Training IELTS. The seventh edition includes six model tests, review material and online audio.
It can be useful when another explanation helps you understand a task or when you need more varied practice. These are model tests from an independent preparation publisher, so keep that distinction clear when comparing them with Cambridge’s authentic test collections.
Use a recent official test you have not seen before for an additional progress check. A score from any practice source is an estimate of current performance, not a promised result in the real exam.
Which books suit your preparation stage
If you are a beginner
Begin with accessible language work, such as a suitable Collins Get Ready for IELTS skills book or Mindset Foundation. Practise understanding instructions, writing accurate sentences and giving short spoken answers.
Add selected IELTS tasks gradually. You can learn the test format early without expecting yourself to complete every task successfully straight away.
If you are aiming for Band 6 or 6.5
Use one main guide or coursebook and one recent Cambridge practice book. Review the mistakes that cost you marks most often, such as misunderstood questions, missing plurals, weak paragraph development or incomplete answers.
Add a grammar or vocabulary book only when it addresses a clear need. Working consistently with a small selection is easier to manage than following several overlapping courses.
If you are aiming for Band 7 or above
Use unfamiliar tests from recent Cambridge volumes to examine consistency under time limits. For Writing and Speaking, seek feedback that identifies specific weaknesses in your response and language.
After feedback, revise the original answer and attempt a new task. This helps you find out whether the improvement transfers to something you have not practised before.
For vocabulary, focus on precise meaning and natural combinations. For grammar, focus on using a suitable range accurately. A longer word or sentence is useful only when it communicates your meaning well.
If you are preparing for General Training
Make a recent Cambridge IELTS General Training edition your main test source. The Official Cambridge Guide to IELTS can provide broader preparation alongside it.
Check that your work includes General Training Reading and letter writing. Listening and Speaking practice can be shared across the two versions, but Academic charts do not replace practice in explaining a situation, requesting action or using an appropriate letter tone.
How to study with IELTS books
Start with a useful assessment
Attempt an unfamiliar Listening and Reading test under the relevant conditions. Complete a Writing task and record yourself answering some Speaking questions. Keep these first attempts so that you can compare them with later work.
Record more than a score. Note where you lost time, which instructions confused you, and which answers were guesses. These details help you decide what to study next.
Review the reason for every important mistake
For Reading, find the words that support the correct answer and explain why your choice does not fit. For Listening, replay the difficult section and then check the recording script.
Here is a simple example of an error log:
| What happened | Likely cause | What to practise next |
|---|---|---|
| I wrote a singular noun instead of a plural | I missed the ending in the recording | Replay the phrase and practise hearing and writing the full word. |
| I chose a heading based on one matching word | I missed the paragraph’s main point | Summarise the paragraph in one sentence before comparing headings. |
| My essay paragraph listed several undeveloped ideas | I did not explain a central point | Rewrite it around one claim, a reason and a relevant example. |
| My Speaking answer stopped after one sentence | I had not developed the response | Add a reason or example, then practise a different question. |
These are examples, not diagnoses for every learner. Use the explanation that matches the evidence in your own work.
Keep learning practice separate from progress checks
During learning practice, pause, reread, use a dictionary when appropriate and repeat difficult exercises. During a progress check, use unfamiliar material and follow the current timing and conditions for your test.
Repeating a familiar test can help you learn, but its score is less useful for estimating readiness because you may remember the answers. Keep some material untouched for that purpose.
For IELTS on computer, add official computer familiarisation practice. Books help develop the underlying skills, while screen-based practice helps you become comfortable with navigation, typing and entering answers.
A practical four week study structure
Use this as an adjustable schedule if you already have enough English to engage with IELTS materials. It is not a promise that every learner can reach their target in four weeks.
| Week | Main focus | Practical work |
|---|---|---|
| Week 1 | Understand your starting point | Attempt an initial assessment, choose a main guide and identify two recurring weaknesses. |
| Week 2 | Build the missing skills | Study relevant lessons, practise short tasks, and revise your writing and spoken responses. |
| Week 3 | Apply skills with time limits | Complete selected timed sections and review the causes of errors before attempting more. |
| Week 4 | Check consistency | Use unfamiliar recent tests, review feedback and practise the delivery format you have booked. |
Keep all four skills in your weekly routine, but give extra attention to the area that most needs improvement. If time is limited, reduce the number of tests so that you still have time to review them properly.
For a more detailed routine, explore our 30-day IELTS Academic study plan. You can also use our IELTS vocabulary lessons to revisit useful language alongside your books.
Common mistakes when using IELTS preparation books
- Collecting resources without finishing useful work. Choose a main book and keep a clear record of the lessons you have applied.
- Doing test after test without review. Identify why an answer was wrong and practise the missing skill before adding more tests.
- Using the wrong test version. Check Reading and Writing requirements whenever you add a resource.
- Memorising full essays or Speaking answers. Study how responses work, then practise answering new questions with your own ideas.
- Assuming every printed sample is a top-band answer. Read the score and comments where these are provided.
- Treating a repeated test score as a new result. Use unfamiliar material when you want a meaningful progress check.
- Expecting a book to assess everything. Answer keys help with objective questions; Writing and Speaking need careful evaluation against the assessment criteria.
Frequently asked questions about IELTS preparation books
What is the best IELTS preparation book for self study?
The Official Cambridge Guide to IELTS is a useful starting choice because it combines explanations, skills work and practice for both test versions. Pair it with a recent Cambridge IELTS book when you need more tests. Lower-level learners may benefit from a foundation resource first.
Which Cambridge IELTS book is the latest?
As of October 2026, Cambridge IELTS 21 is the latest numbered volume verified for this guide. It is available in Academic and General Training editions. Check the version on the cover before beginning your preparation.
Do I need to complete all Cambridge IELTS books from 1 to 21?
No. Choose enough material to learn the necessary skills and check your progress. The number of books you finish matters less than whether you understand your mistakes and can perform consistently on unfamiliar tasks.
Should I start with Cambridge IELTS 1?
There is no requirement to start with Volume 1. The series is numbered by volume, not by beginner-to-advanced level. A current skills guide and a recent practice volume are usually more practical starting points.
Is Cambridge IELTS 21 harder than Cambridge IELTS 20?
The volume numbers do not establish a difficulty ranking. You may find one test harder because of its topics, question mix or your own strengths. Compare performance across several unfamiliar tests instead of drawing conclusions from one result.
Are Cambridge IELTS books enough for Band 7 or Band 8?
They provide useful practice, but no book can guarantee a score. If your main difficulty is language ability, develop that through focused study. If Writing or Speaking is limiting your result, get specific feedback and practise applying it to new tasks.
What is the difference between Cambridge IELTS and the Official Cambridge Guide?
The numbered Cambridge IELTS books mainly provide practice tests. The Official Cambridge Guide to IELTS combines skills lessons and strategies with practice tests. Many learners use the guide to learn an approach and the numbered books to apply and assess it.
Can I use Academic IELTS books for General Training?
You can use relevant Listening, Speaking and general language work. However, you still need General Training Reading practice and letter-writing preparation. Check each book’s coverage instead of relying on the IELTS name alone.
Which IELTS books are best for beginners?
Collins Get Ready for IELTS and an appropriate foundation course are useful options for lower-level preparation. Choose material whose instructions you can follow and build towards complete tests gradually.
Which book should I use for IELTS Writing?
Start with a guide or course that teaches the Writing tasks for your test version, such as the relevant sections of The Official Cambridge Guide to IELTS. Add practice questions, assessment criteria and feedback on your own work. A grammar book can help when sentence accuracy is a recurring problem.
Can I prepare for IELTS on computer using books?
Yes. Books can develop the language and task skills you need. Add current official computer familiarisation practice so that you are comfortable reading on screen, navigating questions and typing your answers.
Can I find free IELTS preparation material?
Yes. IELTS provides free sample questions and practice resources, and publishers provide selected samples and support materials. You can also study with IELTS Worldly’s lessons. Free samples can support preparation without assuming that every complete commercial book is freely available.
How many IELTS books should I use at the same time?
A manageable starting selection is one main guide or coursebook and one recent practice book. Add a specialist resource when you identify a specific gap. Your available study time and the support you need matter more than a fixed number.
How do I know when to move to another book?
Move on when you can explain your main mistakes, apply what you have learned to unfamiliar tasks, or clearly need material your current book does not cover. If the same errors keep appearing, return to the relevant lesson and change how you practise.
Choose your next study step
If you are unsure where to begin, choose the correct test version and one resource that addresses your main difficulty. Complete a manageable lesson or task, review it carefully, and decide what the result tells you to practise next.
Use Cambridge IELTS 1–21 as a resource collection you can select from. Build your preparation around the work that improves your understanding, accuracy and confidence with unfamiliar questions.
Sources and further reading
IELTS is jointly owned by three organizations: the British Council, IDP: IELTS Australia, and Cambridge Assessment English. These organizations work together to develop and administer the test worldwide.
Book descriptions were checked against Cambridge University Press and Assessment, Collins and Barron’s publisher information. The recommendations about study order and combinations are editorial guidance from IELTS Worldly, based on the resources’ stated contents and intended use.