Greg Heffley's school is falling apart—literally. In No Brainer, the eighteenth book in Jeff Kinney's #1 international bestselling Diary of a Wimpy Kid series, the town is threatening to close Greg's school, and he's not too worried...until he realizes he might be separated from his best friend, Rowley.

Now, it's up to Greg to save the crumbling building before it's shuttered for good.

With high-stakes hilarity, friendship feels, and classic Wimpy Kid chaos, this book is a smart pick for readers ages 8–12.

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