The Wonderful Wizard of Oz
Strong A2 to B1
The easiest original in our collection: short chapters, simple sentences, and a clear journey plot make it a realistic first classic for a confident A2 or B1 reader.
See vocabulary data and reading adviceData-led classic book guide
Classic English books by reading level
Which original classic should you read next? We analyzed 24 complete Project Gutenberg texts with TeakReader’s vocabulary-frequency data, then reviewed the syntax, dialect, wordplay, and historical language that raw percentages miss.
Updated
Quick answer
Start with The Wizard of Oz; save Jane Eyre and Verne for later.
The Wonderful Wizard of Oz is the easiest original here and works for a strong A2 or B1 reader. Next, try Alice’s Adventures in Wonderland, one Sherlock Holmes story, or The Time Machine. At B2, Dracula, Treasure Island, and The Secret Garden are good choices. Jane Eyre, Pride and Prejudice, Frankenstein, and Around the World in Eighty Days are advanced B2 or C1 projects.
Want a shorter list? See easy classic books for learners or classics for intermediate learners.
Do not confuse the original with a graded reader. A simplified edition labeled A1, A2, or B1 is a rewritten learning text. This guide compares complete public-domain editions, not adaptations.
Side-by-side comparison
24 original classics, ranked from easiest to hardest
Higher vocabulary coverage usually means fewer interruptions, but it does not measure irony, dialect, or wordplay. Use the final recommendation—not one percentage—in isolation.
| Original book | Our level estimate | Words | Through B1 | Through B2 | Main challenge |
|---|---|---|---|---|---|
| The Wizard of OzL. Frank Baum | Strong A2 to B1 | 38,338 | 96.56% | 97.64% | Easiest in this collection |
| Alice in WonderlandLewis Carroll | Strong B1 to B2 | 25,720 | 96.32% | 97.6% | Moderate with wordplay |
| Peter PanJ. M. Barrie | Strong B1 to B2 | 46,145 | 95.36% | 97.04% | Short, playful, sometimes ironic |
| The Adventures of Sherlock HolmesArthur Conan Doyle | Strong B1 to B2 | 101,488 | 96.63% | 97.92% | Approachable in short episodes |
| The Time MachineH. G. Wells | B2 (strong B1 with support) | 30,696 | 95.79% | 97.46% | Short but descriptive |
| DraculaBram Stoker | B2 | 154,425 | 96.34% | 97.58% | Readable diaries, tricky dialects |
| Little WomenLouisa May Alcott | B2 | 178,952 | 95.71% | 97.2% | Clear but very long |
| Treasure IslandRobert Louis Stevenson | Upper B2 | 65,692 | 95.66% | 97.23% | Nautical words and pirate speech |
| The Secret GardenFrances Hodgson Burnett | Upper B2 | 78,810 | 95.58% | 96.79% | Challenging dialect |
| Tom SawyerMark Twain | Upper B2 | 69,675 | 94.39% | 96.47% | Easy story, heavy dialect |
| Anne of Green GablesL. M. Montgomery | Upper B2 | 98,696 | 94.04% | 95.73% | Long speeches, rich description |
| A Christmas CarolCharles Dickens | Upper B2 | 27,822 | 94.27% | 95.92% | Short but linguistically dense |
| The Call of the WildJack London | Upper B2 | 31,509 | 93.4% | 95.92% | Short, but full of specialist words |
| The Great GatsbyF. Scott Fitzgerald | Upper B2 to C1 | 46,035 | 94.89% | 96.47% | Readable plot, difficult subtext |
| Dr Jekyll and Mr HydeRobert Louis Stevenson | Upper B2 to C1 | 24,500 | 95.44% | 96.78% | Short but formally dense |
| The Picture of Dorian GrayOscar Wilde | Advanced B2 to C1 | 76,405 | 95.55% | 97.63% | Witty dialogue, dense ideas |
| Pride and PrejudiceJane Austen | Advanced B2 to C1 | 123,685 | 96.22% | 97.87% | Challenging |
| EmmaJane Austen | Advanced B2 to C1 | 154,761 | 96.88% | 98.03% | Simple words, subtle meaning |
| FrankensteinMary Shelley | Advanced B2 to C1 | 68,715 | 96.22% | 97.98% | High conceptual and syntactic load |
| Jane EyreCharlotte Brontë | Advanced B2 to C1 | 176,875 | 95.52% | 97.4% | Long and richly descriptive |
| Great ExpectationsCharles Dickens | Advanced B2 to C1 | 176,206 | 95.24% | 96.68% | Long sentences and dialect |
| Around the World in 80 DaysJules Verne | Advanced B2 to C1 | 62,169 | 93.47% | 95.28% | Dense travel and nautical words |
| Wuthering HeightsEmily Brontë | Advanced B2 to C1 | 111,062 | 94.02% | 96.22% | Nested narrators, thick dialect |
| Moby-DickHerman Melville | Advanced C1 | 209,864 | 91.7% | 94.55% | Hardest in this collection |
Choose your next book
Detailed original-edition difficulty guides
Alice’s Adventures in Wonderland
Strong B1 to B2
Short enough for an ambitious intermediate learner, but puns, nonsense, and Victorian expressions make B2 the more comfortable level.
See vocabulary data and reading advicePeter Pan
Strong B1 to B2
A short adventure with everyday vocabulary. The harder part is the narrator, who jokes with the reader and often says the opposite of what he means.
See vocabulary data and reading adviceThe Adventures of Sherlock Holmes
Strong B1 to B2
The twelve-story structure and clear mysteries make this one of the most approachable originals here, although Victorian legal, household, and social vocabulary still requires support.
See vocabulary data and reading adviceThe Time Machine
B2 (strong B1 with support)
A short novella with an exciting idea. The plot is easy to follow, but long descriptive passages and Victorian scientific language need B2-level reading stamina.
See vocabulary data and reading adviceDracula
B2
Told through diaries and letters, Dracula is long but surprisingly readable. The main challenges are its length and several characters who speak in strong dialect or broken English.
See vocabulary data and reading adviceLittle Women
B2
Everyday family life told in clear, warm English. Coverage is high, but the complete book (both parts) is very long, and some words about clothes, manners and home life are old-fashioned.
See vocabulary data and reading adviceTreasure Island
Upper B2
A fast adventure story, but full of sailing words and pirate speech. Most learners understand the plot easily and struggle with the ship vocabulary.
See vocabulary data and reading adviceThe Secret Garden
Upper B2
The narrative is approachable, but Yorkshire dialect, garden vocabulary, and historical language make the original substantially harder than children’s adaptations.
See vocabulary data and reading adviceThe Adventures of Tom Sawyer
Upper B2
A fun, fast story, but much of the dialogue is written in nineteenth-century Missouri dialect, with spellings such as “ain’t”, “knowed” and “feller”. The narration itself is easier than the speech.
See vocabulary data and reading adviceAnne of Green Gables
Upper B2
A gentle story with simple events, but Anne loves “big words” and long, dramatic speeches. Nature descriptions and old words for clothes and farm life add more difficulty.
See vocabulary data and reading adviceA Christmas Carol
Upper B2
Its short length helps, but Dickens’s descriptive sentences, Victorian Christmas customs, and playful narration make the original an upper-intermediate challenge.
See vocabulary data and reading adviceThe Call of the Wild
Upper B2
Short and dramatic, but its vocabulary coverage is the lowest of the new books here. Dog-sledding terms, animal sounds, and miners’ slang appear on almost every page.
See vocabulary data and reading adviceThe Great Gatsby
Upper B2 to C1
The novel is short and its plot is accessible, but figurative prose, social implication, and 1920s American context make full literary comprehension an advanced task.
See vocabulary data and reading adviceStrange Case of Dr Jekyll and Mr Hyde
Upper B2 to C1
Very short, but written in dense, formal Victorian prose. The final chapter, Jekyll’s own statement, is the hardest part of the book.
See vocabulary data and reading adviceThe Picture of Dorian Gray
Advanced B2 to C1
The vocabulary is manageable, but Lord Henry’s witty epigrams and long discussions about art and beauty need advanced reading skills.
See vocabulary data and reading advicePride and Prejudice
Advanced B2 to C1
Best for advanced learners who can follow long sentences, indirect criticism, and early nineteenth-century social language.
See vocabulary data and reading adviceEmma
Advanced B2 to C1
Emma has the highest vocabulary coverage of any book we measured, yet it is not easy. Austen tells much of the story through Emma’s own mistaken thoughts, and the irony is easy to miss.
See vocabulary data and reading adviceFrankenstein; or, The Modern Prometheus
Advanced B2 to C1
The recurring vocabulary is manageable for advanced learners, but formal syntax, philosophical argument, and nested narrators make the 1818 text substantially harder than its plot summary.
See vocabulary data and reading adviceJane Eyre
Advanced B2 to C1
A long, emotional first-person novel with rich descriptions, religious language, and some passages in French. Great for advanced learners who want a big reading project.
See vocabulary data and reading adviceGreat Expectations
Advanced B2 to C1
A gripping story told by Pip, but Dickens writes long, detailed sentences, and several important characters speak in strong working-class dialect.
See vocabulary data and reading adviceAround the World in Eighty Days
Advanced B2 to C1
Fast-moving in plot, yet the original English translation contains dense travel, nautical, geographical, and nineteenth-century vocabulary.
See vocabulary data and reading adviceWuthering Heights
Advanced B2 to C1
One of the hardest classics for learners. The story is told by two narrators inside each other, the time jumps between generations, and the servant Joseph speaks in very thick Yorkshire dialect.
See vocabulary data and reading adviceMoby-Dick
Advanced C1
The hardest book we have measured. It is long, full of whaling and sailing words, and mixes adventure with chapters on whale science, philosophy and Shakespeare-style speeches.
See vocabulary data and reading adviceChoose for your goal
The “best level” depends on how you want to read.
For extensive reading
Choose a book where you can understand the story without frequent lookup. A graded adaptation may be more productive than the original.
For intensive study
A harder original can work when you deliberately preview recurring vocabulary, read short sections, and review words afterward.
For literary enjoyment
Vocabulary is only one part of difficulty. Humor, irony, dialect, cultural assumptions, and sentence structure determine how much of the writing you appreciate.
How the ranking works
Frequency coverage plus human review
For each book, we analyzed the UTF-8 plain-text Project Gutenberg edition after removing its standard header and footer. English word tokens were matched to TeakReader’s ranked frequency data and grouped into practical A1–C2 frequency bands. We then reviewed recurring difficult words and the literary features that a word list cannot see.
These figures are reproducible comparisons of specific editions, not official CEFR certifications. Proper names, dialect spellings, contractions, and inflections can appear as unlisted. A different translation (especially of Jules Verne) can change the vocabulary profile. Lexical coverage research also shows why knowing a high share of running words matters, while not guaranteeing comprehension; this Cambridge review discusses the evidence.
Source editions: The Wizard of Oz #55, Alice in Wonderland #11, Peter Pan #16, The Adventures of Sherlock Holmes #48320, The Time Machine #35, Dracula #345, Little Women #514, Treasure Island #120, The Secret Garden #17396, Tom Sawyer #74, Anne of Green Gables #45, A Christmas Carol #46, The Call of the Wild #215, The Great Gatsby #64317, Dr Jekyll and Mr Hyde #43, The Picture of Dorian Gray #174, Pride and Prejudice #1342, Emma #158, Frankenstein #41445, Jane Eyre #1260, Great Expectations #1400, Around the World in 80 Days #103, Wuthering Heights #768, Moby-Dick #2701. Analysis last updated 2026-10-23.
FAQ
Frequently asked questions
Which classic English book is easiest for a learner?
Of the 24 original texts analyzed here, The Wonderful Wizard of Oz is the easiest: short chapters, simple sentences, and over 93% of running words in the A1–A2 bands. After that, try Alice’s Adventures in Wonderland, Peter Pan, or a single Sherlock Holmes story. Simplified graded readers are easier than any of these originals.
Which of these classic books is most difficult in English?
Around the World in Eighty Days has the lowest vocabulary coverage through TeakReader’s B2 frequency band in this set. Jane Eyre is the longest, and Pride and Prejudice and Frankenstein can be equally demanding for readers who find irony, layered narration, or long formal syntax difficult.
Are these official CEFR levels?
No. The recommendations are evidence-informed editorial estimates, not official CEFR ratings. TeakReader combines frequency-based vocabulary coverage with a review of syntax, dialect, wordplay, historical context, and narrative style.
Why are graded-reader levels different?
Graded readers deliberately shorten and rewrite a story for a target learning level. A publisher’s A2 or B1 label for an adaptation should not be applied to the author’s complete original text.
Can I read these books for free?
All 24 analyzed editions are available from Project Gutenberg. Copyright availability can differ by country. TeakReader can search Project Gutenberg and add public-domain books to your library for vocabulary-focused reading.
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