Presents facts on more than 1300 subjects from Aardvark to Zoo.

Accurate, approachable, and indispensable, this illustrated science encyclopedia is arranged in such categories as "Planet Earth", "Living Things", "Chemistry a

Children's A to Z Encyclopedia covers a full range of clearly arranged alphabetical topics, from ancient history and countries of the world to wildlife, politic

History leaps from the page in this completely revised and updated edition of the critically acclaimed Kingfisher History Encyclopedia. From man's earliest hist

"Minutes, months, millennia - how long is a life on earth?"