For Young Guys

The Carrot Seed, by Ruth Krauss. Illustrated by Crockett Johnson.
Go, Dog. Go!, by Philip D. Eastman.
The Stupids Die, by Harry Allard. Illustrated by James Marshall.
Grimm’s Fairy Tales

For Early Readers

Be A Perfect Person in Just Three Days, by Stephen Manes. Illustrated by Tom Huffman.
Flat Stanley, by Jeff Brown
The Hoboken Chicken Emergency, by Daniel Pinkwater. Illustrated by Jill Pinkwater
Scary Stories to Tell in the Dark, Alvin Schwartz, editor. Illustrated by Stephen Gammell.
Sideways Stories from Wayside School, by Louis Sachar. Illustrated by Julie Brinckloe.
The Twits, by Roald Dahl. Illustrated by Quentin Blake.

For Older Guys

Oddballs, by William Sleator.
Tangerine, by Edward Bloor.
Watchmen, a graphic novel by Alan Moore.

Poetry

Kids are the best judge of the poetry they like. I like the funny poetry of Douglas Florian, Colin McNaughton, Jack Prelutsky, and Shel Silverstein.

Nonfiction

Choose books based on the subjects they care about. Look at books by Russell Freedman, David Macaulay, Jim Murphy, and Seymour Simon.

A FEW GOOD BOOKS ABOUT GUYS

Gurian, Michael. The Good Son: Shaping the Moral Development of Our Boys and Young Men
Gurian, Michael. The Wonder of Boys: What Parents, Mentors, and Educators Can Do to Shape Boys into Exceptional Men
Kindlon, Daniel J.; Thompson, Michael; et al. Raising Cain: Protecting the Emotional Life of Boys
Pollack, William S. Real Boys: Rescuing Our Sons from the Myths of Boyhood
Pollack, William S. Real Boys' Voices

I could go crazy trying to squeeze in more of my favorite books. Check these out for starters.