How to Cook for Forty Humans is a book which Kang and Kodos own. It instructs how to cook using human cuisine. Kang and Kodos utilized it to cook meals for the Simpson family. Lisa mistakes the title for How to Cook Humans and then How to Cook Forty Humans due to dust covering parts of the title up, and speculates that Kang and Kodos wish to eat them. This suspicion is proven unfounded.