20 books • 3 series
Book #1: Collected Series Volume 1
Book #2: Collected Series Volume 2
Book #3: Collected Series Volume 3
Book #4: Collected Series Volume 4
Book #2: Teenage Mutant Ninja Turtles Adventures Volume 2
Book #3: Teenage Mutant Ninja Turtles Adventures Volume 3
Book #5: Teenage Mutant Ninja Turtles Adventures Volume 5
Book #6: Teenage Mutant Ninja Turtles Adventures Volume 6
Book #9: Teenage Mutant Ninja Turtles Adventures Volume 9