Penguin Random House India has announced the release of Diary of a Wimpy Kid: Partypooper, the 20th installment in Jeff Kinney’s record-breaking, laugh-out-loud series that has defined children’s reading for nearly two decades.

The new book, out this October, marks a major milestone for one of the most beloved children’s series of all time—20 books, nearly 300 million copies sold worldwide, and millions of young readers whose first love of reading began with the misadventures of Greg Heffley, the eternally awkward middle-schooler whose antics never fail to amuse.

Two Decades of Wimpy Wonder

For almost twenty years, Jeff Kinney’s Diary of a Wimpy Kid has brought humor, heart, and honesty to the chaos of growing up. In Partypooper, Greg faces what might be every kid’s worst nightmare—a party gone horribly wrong. When the Heffleys decide to host a massive celebration, Greg quickly discovers that parties can be more trouble than they’re worth, from planning disasters to guest list drama.

As always, Kinney delivers his signature blend of doodles, disasters, and deadpan humor, reminding readers that life’s biggest messes often make for the best stories.

“Greg Heffley has been making readers laugh for 20 books now,” said a Penguin Random House spokesperson. “With Partypooper, Jeff Kinney captures the chaos, charm, and cringe of growing up better than ever—it’s a celebration of everything that makes Diary of a Wimpy Kid such a timeless favorite.”

A Global Celebration

2025 is shaping up to be a massive year for Wimpy Kid fans. To mark this 20-book milestone, Kinney and his team are launching a worldwide celebration featuring special events, interactive campaigns, and reader contests designed to bring fans together across generations and geographies.

Adding to the excitement, this December will also see the release of the brand-new animated film adaptation of Diary of a Wimpy Kid: The Last Straw on Disney+ (streaming on JioCinema/Disney+ Hotstar in India), ensuring that Greg Heffley’s world continues to grow both on the page and on the screen.

Why Partypooper Is a Must-Read

Packed with humor and relatable middle-school drama, Partypooper promises more of what readers have loved for years: Greg’s hilarious attempts to navigate family, friends, and the pitfalls of growing up. For reluctant readers, it remains a gateway into the joy of storytelling—accessible, visual, and irresistibly funny.

About the Author

Jeff Kinney is a #1 New York Times bestselling author of the Diary of a Wimpy Kid and Awesome Friendly Kid series. A six-time Nickelodeon Kids’ Choice Award winner for Favorite Book, he was also named one of Time magazine’s 100 Most Influential People in the World. Kinney lives in Massachusetts, where he and his wife own a bookstore, An Unlikely Story.

The Legacy Continues

From page to screen, Diary of a Wimpy Kid has evolved into a global phenomenon, translated into 59 languages across 70 editions, with a fan base spanning continents. With Partypooper, Jeff Kinney celebrates not only the enduring appeal of Greg Heffley but also the magic of books that make young readers laugh, relate, and fall in love with reading.