Complexity rating

Every title gets rated.

We use about a dozen different well-known grade rating algorithms and display a composite reading complexity rating in the following categories:

  1. Very easy
  2. Easy
  3. Fairly easy
  4. Moderate
  5. Fairly difficult
  6. Difficult
  7. Very difficult

Check it out!


If you or your school requires fine-grain detail on the scoring, or the methodology used, please reach out.