Diary of a Wimpy Kid: Partypooper by Jeff Kinney

In Partypooper, Greg Heffley’s forgotten birthday spirals into hilarious chaos as Jeff Kinney marks 20 books of timeless humour and childhood charm.

on Dec 12, 2025

Diary of a Wimpy Kid: Partypooper by Jeff Kinney

Partypooper, the twentieth book in Jeff Kinney’s globally loved Diary of a Wimpy Kid series, brings Greg Heffley back into the spotlight with a birthday he’ll never forget — mostly because it unravels in every possible way.

The story begins with Greg quietly hoping that his parents are planning something big for his upcoming birthday. Instead, he’s hit with a reality that’s far from festive: they’ve completely forgotten the date. What follows is a chain of frantic attempts by his family to make things right, but life keeps throwing obstacles in their way — unexpected events, family commitments, and the usual Heffley-level chaos. Watching Greg navigate all this, torn between hope and disappointment, is equal parts amusing and endearing.

True to Kinney’s style, the humour lands effortlessly. The book is filled with expressive doodles, awkward moments, and the kind of everyday disasters that have made Greg’s journals beloved worldwide. Even without confetti and perfect party plans, the story turns into a celebration of something more relatable — how messy, unpredictable, and downright funny real life can be.

What gives Partypooper an extra sparkle is the milestone it marks: twenty books and a readership that spans 300 million copies. This isn’t just another release — it’s a moment that highlights how Greg Heffley’s voice has connected with readers across two decades. Kinney’s journey from developing the idea in the late ’90s to building a massive web audience before the series went to print shows just how deeply rooted this universe is in creativity and lived experiences.

In Partypooper, Kinney continues to do what he does best: capture the bewildering, hilarious logic of childhood and wrap it in a narrative that feels both familiar and fresh. Greg’s disastrous birthday proves, once again, that imperfection is where the funniest stories hide.

Whether you’ve followed the series from the start or are picking it up at this milestone moment, Partypooper stands out as a funny, fast-paced, and thoroughly entertaining celebration of the Wimpy Kid world.

A birthday gone wrong has never been this much fun.