A practical reading range
Choose an English book by the work it asks of you.
Every Linden book has a provisional CEFR-aligned reading range built from sentence, vocabulary and structural signals. It is a starting point—not an exam score or a judgment of the book.
First originals
Books with visible action, manageable structure and enough context to support a first sustained reading experience in original English.
305 books · 305 complete textsB1–B2Steady progress
Books suited to readers who can sustain a chapter, follow changes in viewpoint and learn historical or subject vocabulary from context.
1937 books · 1937 complete textsB2–C1Deep reading
Books with sustained arguments, long syntax, shifting voices, specialist terms or historical distance that reward deliberate reading.
1770 books · 1770 complete textsUse the estimate
Test a chapter, then adjust.
Your knowledge of the subject, familiarity with the story and tolerance for uncertainty can matter more than a label. Open a book and check its specific sentence, vocabulary and chapter evidence.
Keep perspective
Difficulty is not quality.
A shorter or linguistically simpler book can carry difficult ideas. A long book can feel manageable when its scenes and chapter breaks remain clear.
Read the calibration method →