Partypooper

Same illustrated-journal energy, gleefully unreliable kid narrator, and school-chaos comedy — a natural next pick for Wimpy Kid fans who want more laugh-out-loud mayhem.

Fans looking for books like Partypooper by Jeff Kinney will find Captain Underpants hits almost every same note: a self-obsessed kid protagonist whose schemes always blow up spectacularly, a best-friend sidekick who goes along with everything, illustrated storytelling that keeps pages turning fast, and humor pitched perfectly at the 8–12 crowd. Dav Pilkey shares Kinney's gift for making middle-grade humiliation feel both cringeworthy and completely relatable. Where Greg Heffley navigates social-media shaming and party arms races, George and Harold trigger school-wide pandemonium through their own comic-book creations. The energy is the same: big plans, bigger disasters, zero lessons learned. If your reader devoured Partypooper in a single afternoon and immediately asked 'what do I read next?', Captain Underpants is the answer most likely already on their shelf — or the one they need on it.

Another razor-sharp kid narrator outwitting clueless adults — Dahl's wit and Kinney's share the same comedic DNA, with higher emotional stakes and a deeply satisfying payoff.

Readers who love the way Partypooper positions Greg as the only sane person in a room full of adults making terrible decisions will feel right at home with Matilda. Roald Dahl's classic features a child protagonist who is smarter than every grown-up around her, navigating a world that chronically underestimates her — which maps neatly onto Greg Heffley's constant battle against parents, teachers, and the universe itself. Both books are funny in a slightly dark, knowing way, and both reward readers who enjoy watching a kid figure out how to work the system. If you're searching for 'books like Diary of a Wimpy Kid for middle grade readers,' Matilda is the title that comes up again and again for good reason: it's got the same irreverent energy, just with a larger emotional punch and a genuinely triumphant ending.

Contemporary American middle school, social cruelty, viral-moment pressure, and the cost of popularity — shares Partypooper's social-stakes core but delivers it with more emotional weight.

Partypooper leans into the brutal social economy of middle school — the viral shaming, the party status games, the fear of being publicly humiliated — and Wonder by R. J. Palacio lives in exactly that world, though it handles those themes with deeper emotional seriousness. Both books are set in contemporary American suburbs and center on a kid navigating the unwritten rules of peer belonging. Where Greg Heffley's response to social disaster is self-serving scheming, Auggie Pullman's is quiet courage — which makes Wonder a great companion read for Wimpy Kid fans ready to feel something bigger. For parents or teachers searching for 'what to read after Diary of a Wimpy Kid Book 20 for kids who are ready for something more meaningful,' Wonder is the most natural step up: same setting and social stakes, far greater emotional resonance.