What is the easiest book to read in French?

Of the 76 French classics Einlang analysed, La Dame aux camélias by Alexandre Dumas fils carries the lightest vocabulary load: a reader who knows the 2,000 most common French words would meet about 26 unfamiliar words on a 250-word page, and its sentences average 15.5 words. Manon Lescaut and Les Trois Mousquetaires follow closely.

What is the easiest book to read in Spanish?

Of the 45 Spanish classics Einlang analysed, Niebla by Miguel de Unamuno carries the lightest vocabulary load: a reader who knows the 2,000 most common Spanish words would meet about 43 unfamiliar words on a 250-word page, and its sentences average 11.2 words. Tres novelas ejemplares y un prólogo and Abel Sánchez follow closely.

What is the easiest book to read in German?

Of the 48 German classics Einlang analysed, Nathan der Weise by Gotthold Ephraim Lessing carries the lightest vocabulary load: a reader who knows the 2,000 most common German words would meet about 29 unfamiliar words on a 250-word page, and its sentences average 6.9 words. Demian and Siddhartha follow closely.

How is book reading difficulty measured?

Einlang samples 20,000 running words evenly across each book, then counts how many words on a 250-word page would still be unfamiliar to a reader who knows the 1,000 to 12,000 most common words in that language. Words are counted as families rather than forms, so parle, parlait and parlé count once between them - the way coverage thresholds in reading research are defined. Sampling the same number of words from every book keeps a short play comparable to a long novel, and long average sentences add a small penalty.

How many words do you need to read a novel in a foreign language?

Comfortable unassisted reading starts at roughly 98% of the running words on a page, about five unfamiliar words per paperback page; at about 95%, or twelve a page, you can follow a story with a dictionary. Measured across the French classics Einlang analysed, the most accessible titles reach 95% at around 5,500 word families and the median title at about 7,200. Reaching 98% takes far more - roughly 14,000 for the median French novel - which is why most learners read their first novels with a dictionary rather than without one.

Does this give a CEFR level for each book?

No. Einlang reports a 1-100 difficulty score and a relative band rather than a CEFR level, because assigning A1-C2 accurately requires official CEFR word lists for each language. The score is relative to the other books in the same language: 1 is the easiest title in that collection, 100 the hardest. That is what you need when choosing what to read next.

Book difficulty checker

How hard is that book to read in French, Spanish, or German? Einlang analysed 169 classics - 11.3 million words - and ranked them by reading difficulty, so you can pick one you can actually finish. Each book gets a score from 1 to 100 based on how much of its text a core vocabulary already covers and how long its sentences run. Lower is easier.

Every book here is in the public domain, so you can start reading one today for free. If a book sits just above your level, Einlang turns a photo of any page into vocabulary and grammar notes for that page.

76 books

How the difficulty score works

Difficulty here means vocabulary load: how much of a book is built from words you are likely to already know. Each book is sampled at 20,000 running words drawn evenly across the whole text, and we count how many words on a page would still be unfamiliar at each vocabulary size. Sampling the same number of words from every book is what makes a one-act play comparable to a 900-page novel - without it short texts always look harder, because they have less repetition to average over.

Words are counted as families, not forms. A verb like parler appears as parle, parlait, parlé, parleront and dozens more; counting those separately would mean "the 2,000 most common words" delivered barely 700 real ones, and no book would ever reach a comfortable reading threshold. Grouping them keeps the vocabulary figures close to what you would actually have learned.

The 1-100 score is relative to the other books in the same language: 1 is the easiest title in that collection, 100 the hardest, adjusted for long sentences. Scores are deliberately not compared across languages - each language's word list is built from its own corpus, and a smaller corpus depresses the figures for every book in it.

What this is not: a CEFR level. Assigning A1-C2 accurately needs official CEFR word lists for each language, which this does not use. Verse also scores harder than prose at the same reading level, because poetry repeats common words less. Word families are approximated by suffix rules rather than a full dictionary, so the grouping is close but not perfect. Source texts come from Project Gutenberg.

How many words do you need to read a book?

Reading research puts comfortable, unassisted reading at around 98% of the running words on a page - about five unfamiliar words per paperback page. At 95%, roughly twelve a page, you can follow a text with a dictionary at your elbow. That is why these figures matter more than the raw word count: a long book made of common words is far easier than a short one full of rare ones. Our post on how many words you need to be fluent covers the thresholds in detail, and comprehensible input explains why picking something slightly too easy beats picking something too hard.

Read the book that is one level too hard

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