Description 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.