A graded reader is a book written for one level of English. The vocabulary is capped and the grammar is controlled. The sentences stay short. You can finish a whole story without a dictionary, and still meet new words.
A real novel at the wrong level teaches you nothing, because you spend the evening looking words up and lose the story. A graded reader at the right level teaches you English while you enjoy the story. This post shows how to find that level, how to test it in ten minutes, and how to know when to move up.
What "graded" actually controls
Three things are restricted, and they matter in this order.
Vocabulary is capped at a headword list. A 700-headword reader draws nearly every word from the 700 most frequent and useful words in English, plus proper nouns and a small number of glossed items. One headword covers its whole family, so walk, walks, walked and walking count once.
Grammar is restricted to structures a learner at that level has studied. Low-level readers stay in the present and past simple. They avoid the perfect tenses, conditionals and passive voice that appear everywhere in real English prose.
Sentence length is held down. A sentence of nine words with one unknown word in it is readable. A sentence of forty words with one unknown word in it often is not.
A graded reader is therefore the opposite of a children's book. A book for a native six-year-old assumes thousands of spoken words and follows no grammar syllabus at all, so it is full of concrete nouns you have never studied and idiomatic verb phrases no coursebook introduces. Graded readers are plain on purpose, and comprehensible on purpose. At A1 and A2, giving up rich prose to get text you can actually read is worth it.
The four series at a glance
Four publishers make most of the English graded readers you will find. Their level numbers do not mean the same thing, so compare headword counts, not level names.
| Series | Levels | Headwords | Best for |
|---|---|---|---|
| Oxford Bookworms Library | 7 stages, Starter to Stage 6 | 250 to 2,500 | Widest catalogue, over 270 titles; mostly adaptations of classic and modern fiction, plus a non-fiction line called Factfiles |
| Penguin Readers | 8 levels, Starter to Level 7 | labelled by CEFR | Clearest level labels; adaptations, most with audio |
| Cambridge English Readers | 7 bands, Starter to Level 6 | 250 to 3,800 | Original fiction written for the series, so the plots are less familiar and the prose holds up better at intermediate level |
| Macmillan Readers | Level names, Starter to Upper | about 300 to 2,200 | Retold classics mixed with original stories, built for classroom use |
Two things follow from the table. First, a "Level 4" means four different things depending on the spine, so the headword number is the only portable unit. Second, the top of the catalogue stops around 3,800 headwords. That is roughly half of what unsimplified prose assumes, which is why this post also covers where graded readers run out.
The Extensive Reading Foundation keeps an independent grading scale across publishers, because publisher levels disagree. Its Language Learner Literature Award shortlists name the readers that judges rated highest each year.
The ten-minute sampling test
Ignore the cover. Pick a reader, open it somewhere in the middle, and read one full page. A page holds about 200 words. Count the words you cannot work out from context.
| Unknown words per 200-word page | Known share | What it means |
|---|---|---|
| Fewer than 10 | About 95% or more | Right level: read it, and line up more at this band |
| 10 to 16 | About 92% | A stretch: readable, but keep a dictionary nearby |
| More than 30 | Below 85% | Too hard: drop a band, whatever the label says |
The 95% line is the one that matters. Research on reading coverage puts comfortable unassisted reading at roughly 98% of running words known, and 95% is the practical floor for a learner reading for pleasure. Below 90%, you stop reading and start decoding.
Three details make the test work. Test a middle page, not the first: the first page of a reader is usually the easiest page in it, and the cover flatters. Test one full page, not one paragraph: a paragraph can hide a hard patch. And test the book you actually want to read, not a sample chapter the publisher chose.
Learners routinely choose one band too high. Starting a band low costs you nothing. An easy reader is still reading volume, and reading volume is the whole mechanism.
Test the middle page, not the cover: fewer than 10 unknown words per 200-word page means the level is right.
How many readers before you move up
At the lower bands, the single best instruction is quantity. Read five or six titles in one band before moving up, more if you are enjoying them. One reader teaches you very little. Twenty readers at the right level rebuild your reading speed, and reading speed is what eventually lets you finish a real book.
Move up when a whole book stays above 95% known words and feels easy. If you have to stop in every sentence, you are a band too high. If you read a whole book without meeting a single new word, you are a band too low.
Keep the two reading modes separate. Read your graded readers fast, for the story, without looking anything up. Save the slow, careful, dictionary-in-hand treatment for short texts. The two modes serve different purposes, and mixing them turns a story into homework.
For the wider method this post sits inside, see our guide on how to learn English by reading.
What to do with the words you don't know
A reader at the right level still gives you new words. What you do with them decides whether they stick.
Save the base form, not the inflected form. Go, went and gone are one word, not three. Take, took and taken are one word. If you save every form as a separate item, your wordbook fills up with the same word wearing different clothes, and you never learn how many words you actually know.
Save phrasal verbs as one item. Put up with is one piece of English, not three words that happen to sit together. Get on with is one item. Store the whole phrase with its sentence, or you will know the parts and miss the meaning.
Keep one wordbook across all your books. A word you learned in one reader should be recognised in the next one. If your wordbook is locked inside one book, every new book starts you from zero.
Bring your own copy of a graded reader into Lucerna, import the EPUB, PDF or TXT, and save words as you read. Lucerna shows the base form with each word, so went is stored under go, and one wordbook follows you across every book you import. The next book already knows what the last one taught you.
Lucerna does not supply books. Graded readers are copyrighted, so you bring your own copy and import it. The free trial covers 1 book and 5 words, and a free account covers 5 books and 200 words, with sync across devices.
Pair the page with sound
Most graded readers come with audio, and the audio is worth more than the exercises. Use it in a loop: read a chapter first, listen to it after, then read it again. The first read teaches you the story. The listen teaches you the sounds. The second read is where the words settle.
Do not listen first. If you listen before you read, you practise listening, and the text becomes a transcript. Read first, while the words are still a small puzzle, and let the audio confirm what you worked out.
A free version of the same loop works with public-domain books. Project Gutenberg offers nearly 78,000 free titles, and LibriVox records free audiobooks of the same texts, read by volunteers. Pick a book that exists in both places, read a chapter, then listen to the same chapter. The pairing matters more than the title: same text, same chapter, read then heard.
Free places to start
You do not need to buy a shelf of readers before you know whether the method suits you.
- VOA Learning English publishes news in a core vocabulary of about 1,500 words, at slowed delivery. It has run in some form since 1959. It is graded input, free, and new every day.
- BBC Learning English publishes levelled news and language explainers. Between the two, you get daily graded input in both major written standards, which is useful because spelling and some vocabulary differ.
- Project Gutenberg offers nearly 78,000 free titles (counted March 2026). The classics are there in full, and the ones with a LibriVox recording give you the read-listen loop for free.
- Olly Richards, Short Stories in English for Beginners (2018) is the most practical first purchase if you do buy one book: eight original stories at A2 to B1, 252 pages, ISBN 9781473683556, written for adult learners rather than adapted from a classic.
- Extensive Reading Foundation award shortlists list the readers that teachers and judges rated highest each year, which is a better guide than any single publisher catalogue.
Start with one free source for a week. If you finish three or four stories and want more, buy one reader at the level the sampling test gave you, not the level you wish you were at.
Where graded readers run out
Around B1, the supply narrows sharply, and this catches nearly everyone. Publishers sell most copies at A1 and A2, so catalogues taper upward. The top bands stop between about 2,500 and 3,800 headwords, while research estimates 8,000 to 9,000 word families for unassisted reading of unsimplified written text (Nation, 2006). And the features that make a reader work at A1, short sentences and flattened syntax, become actively unpleasant at B1, when you have enough English to hear how thin the prose is.
That leaves a gap between the hardest graded reader and the easiest real English novel. Three honest ways across exist. Read easy authentic fiction written for young readers but not for infants: Charlotte's Web (E. B. White, 1952) and Holes (Louis Sachar, 1998) are short, plain books that adults genuinely enjoy. Read genre fiction with high redundancy, where a thriller repeats its own vocabulary chapter after chapter. Or lower the book instead of raising yourself: import a chapter you already wanted to read into a reader app and work through it with lookups, one chapter at a time.
Do not try to cross the gap by willpower alone. A book far below the coverage you need does not build reading skill; it builds the habit of abandoning books. Cross it with a book you can actually finish.
Our guide to what to read after your first graded reader walks through that move in detail.
The top graded band holds about 3,800 headwords; unsimplified prose assumes 8,000 to 9,000. Plan the crossing before you arrive at it.
FAQ
Which English graded reader series is best?
There is no single winner. Oxford Bookworms has the widest catalogue and clear headword counts. Cambridge English Readers has original fiction that reads less flattened at intermediate level. Penguin Readers labels every title against the CEFR directly. Macmillan Readers suits anyone who wants exercises and audio built in. Match the headword count first, then pick on taste.
What level of English graded reader should I start with?
One band below where you think you are. Read a middle page and count unknown words: fewer than 10 per 200-word page is the right band, more than 30 means drop down. Most learners finishing an A1 course belong at 250 to 400 headwords.
Are graded readers only for children?
No. Graded readers are written for adult learners: the vocabulary is controlled and the stories are written for grown readers. A book for a native six-year-old is a different thing entirely. It assumes thousands of spoken words, follows no grammar syllabus, and is full of words no coursebook introduces. If a graded reader feels childish, the problem is the title you picked, not the format.
When should I stop using graded readers?
When the top band of a series stops challenging you, usually somewhere in B1 to B2. Expect the jump to be real: unsimplified prose assumes several times the vocabulary any graded reader contains. Bridge it with easy authentic fiction or with a real book worked through chapter by chapter.
Fact-checked 9 November 2026. Sources: publisher series data from Oxford University Press, Penguin Readers, Cambridge University Press and Macmillan Readers, as summarised in the series comparison table; reading coverage research by Nation (2006); Project Gutenberg title count, March 2026; VOA Learning English core vocabulary of about 1,500 words; Extensive Reading Foundation grading scale and Language Learner Literature Award. Keyword data: "english graded readers", KD 45.3/100 (medium), US volume 90/month, checked 9 November 2026.
