Weekend reviews

There are lots of reviews this weekend in the Washington Post's "Book World." Here's what you'll find:

• Rhona Campbell recommends new adventure titles from National Geographic: Exploring Caves: Journeys into the Earth, by Nancy Holler Aulenbach and Hazel A. Barton; Onward: A Photobiography of African-American Polar Explorer Matthew Henson, by Delores Johnson; and Freedom Riders: John Lewis and Jim Zwerg on the Front Lines of the Civil Rights Movement, by Ann Bausum
• Olivia Ludwig, age 14, talks about reading The Adventures of Huckleberry Finn with her father
• Jabari Asim gives a thumbs up to Phyllis Reynolds Naylor's latest, Who Won the War?