Successfully place your first item on the correct shelf

Correctly place 100 items on the shelves

Correctly place 1,000 items on the shelves

Correctly place 5,000 items on the shelves

Correctly place 10,000 items on the shelves

Correctly place all items on the shelves

Throw away 100 items

Place 100 items without throwing any away

Hold 10 or more items at once

Correctly place all the books

Correctly fill one rack with items

Unlock a skill

Fully unlock and upgrade all skills

Collect all collectible items