Nonfiction books checked out at primary school libraries: 75% cent to boys, 25% to girls.

Book readers overall: men, 46%; women 54%.

Literary readers: men, 37%; women, 63%.

Heavy readers: men, 29%; women, 71%.

Readers of science fiction and horror: men, 17%; women, 8%.

Readers of mystery and suspense: men, 14%; women, 24%.

Readers of history and war: men, 9%; women, negligible.

Readers of science and technology: men, 7%; women, negligible.

Readers of romance: men, negligible; women, 12%.

Readers of personal growth: men, negligible; women, 8%.

Excerpted from Jump-Starting Boys: Help Your Reluctant Learner Find Success in School and Life, by Pam Withers and Cynthia Gill (Viva Editions). All references (footnotes) contained in the book.