Fight or Flight (Diary of a Wimpy Kid #21): A laugh-out-loud knockout from the #1 international bestselling Diary of a Wimpy Kid series (Volume 21) - Hardcover

Kinney, Jeff

Hardcover

ISBN 10: 1419782703 ISBN 13: 9781419782701

Publisher: Amulet Books, 2026

Synopsis

Greg Heffley is about to learn that surviving middle school is no easy feat.

In Fight or Flight, the 21st book in Jeff Kinney’s globally bestselling Diary of a Wimpy Kid series, Greg's hard-earned expertise on navigating the rough-and-tumble world of middle school is put to the test.

When a secret binder filled with Greg’s notes on the school’s biggest bullies falls into the wrong hands, his world quickly begins to unravel. Now it’s a race against time before the truth comes out. Will Greg throw in the towel―or go down swinging?

A hilarious read for kids ages 8-12, packed with classic Wimpy Kid humor, unforgettable middle-school drama, friendship twists, and Jeff Kinney's signature illustrations.

Collect all the books in the #1 bestselling Diary of a Wimpy Kid series: Diary of a Wimpy Kid (#1) | Rodrick Rules (#2) | The Last Straw (#3) | Dog Days (#4) | The Ugly Truth (#5) | Cabin Fever (#6) | The Third Wheel (#7) | Hard Luck (#8) | The Long Haul (#9) | Old School (#10) | Double Down (#11) | The Getaway (#12) | The Meltdown (#13) | Wrecking Ball (#14) | The Deep End (#15) | Big Shot (#16) | Diper Överlöde (#17) | No Brainer (#18) | Hot Mess (#19) | Partypooper (#20) | Fight or Flight (#21)

See the Wimpy Kid World in a whole new way with the #1 bestselling Awesome Friendly books, told from the perspective of Greg Heffley’s best friend Rowley Jefferson: Diary of an Awesome Friendly Kid: Rowley Jefferson’s Journal | Rowley Jefferson’s Awesome Friendly Adventure | Rowley Jefferson’s Awesome Friendly Spooky Stories | Rowley Jefferson’s Awesome Friendly Spooky Stories 2

About this title

About the Author

Jeff Kinney is a #1 New York Times bestselling author of the Diary of a Wimpy Kid series and the Awesome Friendly Kid series. He is a six–time Nickelodeon Kids’ Choice Award winner for Favorite Book and has been named one of Time magazine’s 100 Most Influential People in the World. He spent his childhood in the Washington, DC, area and moved to New England, where he and his wife own a bookstore named An Unlikely Story.

Edition details

• Publisher: Amulet Books
• Publication date: 2026
• Language: English
• ISBN 10: 1419782703
• ISBN 13: 9781419782701
• Binding: Hardcover
• Number of pages: 224