Kill monsters, take their heads, and then use their heads to trigger moves (or talk to them to reroll a botched spout lore): a gruesome circle of life.
As you level up you can use your heads in a bunch of new ways (we managed to cram twenty-three advanced moves on the sheet): take their eyes, wear their faces, use them as ranged weapons, intimidate others, shrink them so you can carry more around, give them to Death in exchange for your own soul, and more.
This product contains four separate pdf files. Two are digest-sized, 20 page pdfs that includes:
The other two are 2-page, letter-sized character sheets for you to print out and actually use at the table. It features a new layout that provides more room for gear and alternate moves than the "official" Dungeon World character sheets. If you want the gear already on there, the second character sheet has that.