Bonnie's Bookstore is a word-forming puzzle video game developed by New Crayon Games and published by PopCap Games. On each level, tiles containing one (or in some cases, two) letters are arranged in a specific structure. As in the similar title Bookworm, players use adjacent letters to form valid words, with points being awarded based on the length of the word. In most cases, once a letter is used, it is removed from the board, with existing letters moving downwards and new letters filling in from the top.