When you spend uninterrupted time (an hour or so) in quiet contemplation of your spellbook, you:
- Lose any spells you already have prepared
- Prepare new spells of your choice from your spellbook whose total levels don't exceed your own level+1.
- Prepare your cantrips which never count against your limit.
The information on this site is based on the works of Sage LaTorra and Adam Koebel.
More information can be found at the Dungeon World Official Website.