PREORDER: Partypooper: Diary of a Wimpy Kid Series Volume 20 | Jeff Kinney (Author) | OUT Oct 21, 2025

This title will be released on: Oct 21, 2025

A Side-Splitting Birthday Disaster from the #1 International Bestselling Diary of a Wimpy Kid Series

International bestselling author Jeff Kinney serves up heaps of laughs in Partypooper, the 20th book in the Diary of a Wimpy Kid series

You’re Invited—RSVP for Fun!

It's Greg's birthday--and you're invited to the chaos. In Partypooper, the 20th book in Jeff Kinney's global smash-hit Diary of a Wimpy Kid series, Greg Heffley is planning the ultimate party--for himself.

But when the guest list grows, the decorations flop, and the surprises backfire, this birthday bash turns into a total blowout--just not the kind Greg had in mind.

Packed with cake disasters, family fiascos, and classic Wimpy Kid humor, this book is perfect for readers ages 8-12.