Diary of a Wimpy Kid: No Brainer, Volume 18:

Diary of a Wimpy Kid: No Brainer is the 18th book in the hit series by Jeff Kinney. In this installment, Greg Heffley finds himself caught in a brainpower crisis as his middle school gears up for a battle of the minds.

Greg's school is determined to prove itself the smartest, and Greg must navigate the pressure to compete, all while dealing with the usual chaos of school life, family drama, and personal dilemmas.

With Kinney’s signature humor, the story touches on themes of intelligence, competition, and growing up.