587 books • 126 series
Book #2: Phineas and Ferb My Funny Valentine
Book #12: Phineas and Ferb the Sky's the Limit!
Book #3: Phineas and Ferb Wild Surprise
Book #4: Phineas and Ferb Thrill-O-Rama!
Book #5: Phineas and Ferb Big-Top Bonanza
Book #9: Phineas and Ferb Chill Out!
Book #1: Shake It Up Center Stage
Book #5: Shake It Up Take the Lead