How to Conquer the Tri-State Area

How to Conquer the Tri-State Area (by Heinz Doofenshmirtz) is a paperback book written by Ellie O'Ryan.
==Description==
Join Dr. Doofenshmirtz in this hilarious chapter book packed with cool illustrations, crazy plots, wacky ideas and devious diagrams. Find out how he plans to conquer the Tri-State Area and finally defeat Agent P!
Category:Books
Category:Phineas and Ferb books