A Child's Garden of Cons

A Child's Garden of Cons is a book about scams written Grifty McGrift who is Abe Simpson actually.

History
When Bart and Homer decided to make scams in Springfeld, they used the book for inspiration. They later discovered that Abe wrote this book. He was called Grifty McGrift, because in the depression, he had to either grift or work. Abe then started helping them with scams.