THE ONE WHERE GREG SHAPES UP

The third laugh-out-loud, fully-illustrated Diary of a Wimpy Kid book from #1 international bestselling author Jeff Kinney! A global phenomenon with 300 million copies of the series sold worldwide!

Greg Heffley's dad is on a mission! He's decided it's time for this wimpy kid to become, well, less wimpy and has planned lots of "manly" activities for him and his son.

Greg somehow manages to find ways to get out of most of them, but when his dad threatens to send him to a military academy, Greg realises he's going to have to somehow shape up ... or get shipped out!

WHAT'S IN DIARY OF A WIMPY KID?
50% words, 50% cartoons, 100% hilarious!
Stories that all readers can't wait to get their hands on
Laughter guaranteed!

LOOK OUT FOR:
Rowley Jefferson's Awesome Friendly Spooky Stories 2 in August 2026!
Diary of a Wimpy Kid: Fight or Flight (Book 21) in October 2026!

Have you read all the DIARY OF A WIMPY KID series?
Diary of a Wimpy Kid
Diary of a Wimpy Kid: Roderick Rules
Diary of a Wimpy Kid: The Last Straw
Diary of a Wimpy Kid: Dog Days
Diary of a Wimpy Kid: The Ugly Truth
Diary of a Wimpy Kid: Cabin Fever
Diary of a Wimpy Kid: The Third Wheel
Diary of a Wimpy Kid: Hard Luck
Diary of a Wimpy Kid: The Long Haul
Diary of a Wimpy Kid: Old School
Diary of a Wimpy Kid: Double Down
Diary of a Wimpy Kid: The Getaway
Diary of a Wimpy Kid: The Meltdown
Diary of a Wimpy Kid: Wrecking Ball
Diary of a Wimpy Kid: The Deep End
Diary of a Wimpy Kid: Big Shot
Diary of a Wimpy Kid: Diper Overlode
Diary of a Wimpy Kid: No Brainer
Diary of a Wimpy Kid: Hot Mess
Diary of a Wimpy Kid: Partypooper