The estimated difficulty of each title is presented on the CEFR scale.
2
English Difficulty
The CEFR level assigned to each title is determined by the English Difficulty score, a linguistic complexity value ranging from 0 to 10 based on many parameters.
3
Complexity Factors
Each title includes a detailed analysis of the main factors that determine its difficulty.
4
Learning Notes
For each title, you can take notes about new words or expressions you learn. You can view and download all your notes from your profile page.
5
Watch Tracker
Logged-in users can track titles and help adjust the English Difficulty score by voting.
