Grandfather tells a story about shape-changing fox fairies who try to best each other until a hunter brings danger to both of them.

A biography of Leonardo Fibonacci, the 12th century mathematician who discovered the numerical sequence named for him.

“In a story where every turn is possible, if improbable, Graham makes readers believe. High hopes and busy, vibrant artwork . . . will entice children.” —

There's a hawk in the city! New York City is known for its sky-scrapers, subways, and hustle and bustle -- not for its wildlife. So everyone is surprised when a

This collection gathers together nearly 330 tangrams, the best creations of both Chinese and Occidental puzzle devisers. Puzzles range from the relatively easy