A collection built around learning

The Sudoku
Learner's Library.

A good puzzle asks you to think. A good learning book helps you understand how. Find the right balance of explanation, practice, and independence.

Different books. Different jobs.

A library, not a ladder.

Use the Guide as your reference. Choose Practice for a specific technique, Start Here for a hint, or Candidates Done to skip setup. Mastery gives you room to solve on your own. Discovery adds a creative reward: puzzles that reveal a picture.

Find your next step

Which book is right for you?

Start where you are.
There's more than one way in.