Below is the complete list of Dav Pilkey’s Super Diaper Baby books in publication order. For this series, the chronological reading order is the same as the order of publication.
Super Diaper Baby Books in Publication Order
- The Adventures of Super Diaper Baby (2002)
The Adventures of Super Diaper Baby was published in 2002 and is listed as book #1 in the Super Diaper Baby series. - The Invasion of the Potty Snatchers (2011)
Published in 2011, The Invasion of the Potty Snatchers is listed as book #2 in the Super Diaper Baby series.
About Super Diaper Baby
Dav Pilkey’s Super Diaper Baby series is a spin-off from the Captain Underpants world, presented as if it were created by George Beard and Harold Hutchins themselves. That framing is essential to the joke. These books are not written in the polished style of a traditional superhero story; they are deliberately messy, misspelled, ridiculous, and full of the kind of humor George and Harold would invent during one of their comic-making sessions. Pilkey uses that pretend-child-created style to celebrate imagination in its rawest form.
The first book, The Adventures of Super Diaper Baby, introduces a baby superhero whose origin story parodies classic comic-book beginnings in the most absurd way possible. Instead of a noble alien, a masked billionaire, or a science experiment gone wrong, the hero is a baby with powers, a diaper, and very little understanding of the chaos around him. The villain, Deputy Dangerous, helps set the tone: exaggerated, foolish, and designed for laughs rather than genuine menace. The story is full of cartoon action, silly names, and bathroom humor, but beneath the nonsense is Pilkey’s familiar respect for how children actually create stories.
The second book, Super Diaper Baby 2: The Invasion of the Potty Snatchers, continues the comic-book parody with even bigger absurdity. Like many of Pilkey’s sequels, it escalates the joke rather than simply repeating the first book. The story leans into superhero adventure, gross-out comedy, and visual exaggeration, while keeping the handmade feeling that defines George and Harold’s fictional comics. The result is a book that feels intentionally wild, as though two kids with pencils, jokes, and too much energy decided to build their own superhero universe without asking permission.
Super Diaper Baby is closely connected to Captain Underpants, but it has its own identity. Captain Underpants turns a school principal into a ridiculous superhero; Super Diaper Baby takes the homemade comic idea even further by making the entire book feel like something George and Harold produced. That means the crude drawings, playful spelling, and chaotic pacing are not flaws in the design. They are the design. Pilkey is imitating a child’s creative confidence, where the story does not have to be perfect to be exciting, funny, and full of life.
The series also fits into Pilkey’s larger mission as a children’s author. He has often created books for kids who may not respond to quiet, formal, text-heavy stories. Super Diaper Baby gives those readers speed, pictures, jokes, action, and a sense that books can be made from the same kind of goofy ideas they might laugh about with friends. The humor may be loud and silly, but the effect can be serious: it lowers the pressure around reading and reminds children that storytelling can begin with play.
Compared with Dog Man or Cat Kid Comic Club, the Super Diaper Baby books are smaller and more directly tied to the Captain Underpants era. They are not as emotionally layered as Pilkey’s later graphic novels, but they are important because they show the bridge between George and Harold’s classroom comics and Pilkey’s later full embrace of kid-made comic storytelling. The series is proudly immature, highly visual, and completely committed to making young readers laugh. Its lasting charm comes from the idea that even the silliest drawing in a notebook can become a superhero adventure.