The cover is light yellow with the red numbers one, two, and three. On the inside there are white pages with big red numbers that nearly fill the pages. The numbers are consecutive to the pages, and are the only things featured in the book.
Role in the episode
Patrick was seen reading this book where he was literally counting the numbers. He decided to get the book until SpongeBob came inside and wanted to buy some Mermaid Man and Barnacle Boy trading cards. Patrick eventually abandoned buying 1 2 3 and bought a pack of cards himself.