About World Literature Trends
What Is This Site?
World Literature Trends is a data-driven guide to classic literature. We combine popularity data, reading difficulty scores, and book summaries to help you discover your next great read from the world's most celebrated public domain works.
All featured books are freely available through Project Gutenberg, making classic literature accessible to everyone.
How We Rank Books
Books are ranked by Wikipedia pageviews over the last 90 days. This reflects real-world interest and cultural relevance — which classics people are actively reading about right now. Rankings are updated daily.
Reading Difficulty Levels
Each book is assigned a difficulty level based on the Flesch Reading Ease score, calculated from the actual full text. This measures sentence length and syllable complexity to estimate how easy a text is to read.
| Level | Flesch Score | Description |
|---|---|---|
| Beginner | 90–100 | Very easy to read. Short sentences, simple words. |
| Elementary | 70–89 | Easy to read. Conversational style. |
| Intermediate | 50–69 | Fairly easy to read. Standard prose. |
| Upper Intermediate | 30–49 | Somewhat difficult. Longer sentences, richer vocabulary. |
| Advanced | 0–29 | Difficult to read. Complex prose and vocabulary. |
Data Sources
Project Gutenberg — Book catalog, full texts, and download counts. Over 70,000 free eBooks.
Wikipedia — Daily pageview data via the Wikimedia Pageviews API, used for popularity rankings and trend charts.
Open Library — Book cover images.
How Often Is Data Updated?
All data is automatically refreshed every day. This includes Wikipedia pageviews, book rankings, and trend charts.
Affiliate Disclosure
This site contains affiliate links to Amazon. When you purchase a book through these links, we may earn a small commission at no extra cost to you. This helps support the ongoing maintenance of the site.
We always recommend reading the free version on Project Gutenberg first — every book on this site is available for free.
Operated by
This site is operated by Chord7.
Contact
Have feedback, suggestions, or questions? Send us a message using the form below.