Books in the Bob the Littlest Dinosaur series

Tired of being the smallest dinosaur, Bob sets out on an adventure to change his appearance. On his journey, he encounters a wizard who says he will help him if he performs a task for him. While trying to do that task, he meets a gnome who promises to help him if he will forget the wizard's offer. After facing many obstacles, Bob decides that being small isn't as bad as he thought it was.