Phineas and Ferb: Agent P's Top-Secret Joke Book is a joke book written by Jim Bernstein and Scott Peterson.
Another hilarious new joke book based on Disney Channel and Disney XD's hit animated series, Phineas and Ferb!
Dr. Doofenshmirtz is trying to destroy all of the laughter of the Tri-State Area with his latest evil invention--the De-Laughinator. It's up to Agent P to stop him, and the only way to defeat the evil doctor's plan is to read these hilarious jokes and riddles aloud! This second Phineas and Ferb joke book is filled with screen grabs and black and white original art throughout.