Homer, I Hardly Knew Me is Homer's autobiography. He keeps several boxes of unsold copies in the attic.
Homer, I Hardly Knew Me appears only in The Thing and I segment of "Treehouse of Horror VII". When Bart and Lisa try to locate a noise they heard in their bedrooms at night, later revealed to be Hugo, Bart's non-canonical twin brother. They checked up in the attic of the house and stumbled upon Homer's unsold copies of Homer, I Hardly Knew Me.
This book also appears in The Simpsons: Virtual Springfield at the non-fiction section of the library.