Step back in time to discover the incredible past on planet Earth. This captivating children's atlas gives a complete history of the life and times of our world

Whatever Happened to the World of Tomorrow?, the long-awaited follow-up to Mom's Cancer, is a unique graphic novel that tells the story of a young boy and his r

An encyclopedia designed especially to meet the needs of elementary, junior high, and senior high school students.

Did lead pipescause the fall of the Roman Empire? How many toilets were in theaverage Egyptian pyramid? How did a knight wearing fiftypounds of armor go to theb