Sixth book in series lacks some punch but stays funny.
When it comes to the awkwardness of middle school, this book's hero knows how to make kids laugh.
Milder than Wimpy Kid, and a sure hit with boys.
Slacker turns hero for his gal in quirky graphic novels.
Fourth in the funny series is the mildest yet.
A gratifying, if lightweight, dish.
Gross bathroom humor book may appeal to reluctant readers.