Get ready for chaos as Greg Heffley plans the ultimate birthday bash in Diary of a Wimpy Kid: Partypooper, the twentieth installment in Jeff Kinney’s globally successful series. This fully-illustrated, laugh-out-loud book guarantees humor as Greg’s party plans—from the guest list to the decorations—go hilariously wrong, resulting in a total blowout.

• The twentieth book in the #1 international bestselling Diary of a Wimpy Kid series.
• Features 50% words and 50% cartoons for a highly engaging read.
• Tells the story of Greg Heffley's chaotic birthday party planning.
• Perfect for readers who enjoy humorous, illustrated stories.

• Brand: Puffin
• Author/Illustrator: Jeff Kinney
• Binding: Hardcover
• Language: English
• Edition: 1st
• Publication Date: October 21, 2025
• Print Length: 224 pages
• Reading Age: 8 - 11 years
• Dimensions: 13.2 x 2.5 x 20.4 cm
• Weight: 500 g
• ISBN-10: 0241745160
• ISBN-13: 978-0241745168

Dive into the latest Wimpy Kid adventure packed with cake disasters and family fiascos. If you love the previous 19 books in the series, you won't want to miss Greg's latest attempt at throwing a perfect party.