Review by Elizabeth Quill

Primatologists follow the social lives of these big-brained Costa Rican monkeys.Harvard Univ. Press, 2008 358 p. $45

Learn to use simple arithmetic to approximate anything.Princeton Univ. Press, 2008, 300 p. $19.95

The book promises a personal history of Isaac Newton. Ackroyd also wrote Shakespeare: The Biography and London: The Biography.Nan A. Talese, 2008 176 p. $21.95

In this picture book, a child uses sight and touch to identify seven common trees, even after they've lost their leaves.Charlesbridge Publishing, 2008, 30 p. $15.95

Review by Tina Hesman Saey

Beautiful photos of sand grains up close reveal surprising diversity. Text describes a sand grain's journey from mountain to beach.Voyageur Press, 2008, 112 p. $20.