Bum Reading Order

The Day My Butt Went Psycho! / The Day My Bum Went Psycho!

2001

Zombie Butts From Uranus! / Zombie Butts from Uranus!

2003

Butt Wars: The Final Conflict / Bumageddon

2005

What Buttosaur is That? / What Bumosaur is That?

2007