Books
Each book is a section of this site: chapters read in order, with problem sets at the end of each one.
Problem sets come in three tiers:
| Tier | Who it is for | Availability |
|---|---|---|
| Practice problems | Everyone | Free, with worked solutions |
| Problem sets | Readers who want more | Free problems; solutions sold separately |
| Instructor sets | Verified instructors | Free, including full solutions |
Accounts, purchasing, and instructor verification are not built yet. Until they are, everything published here is free.