This is the most comprehensive and exciting book in many decades on magic squares -- arrays filled with numbers or letters in particular arrangements. Clifford Pickover offers a colorful history of these and similar structures, their construction, and classification along with a remarkable variety of newly discovered objects ranging from ornate inlaid magic cubes to hypercubes. Number lovers, puzzle aficionados. and math enthusiasts will treasure this rich and lively encyclopedia of one of the few areas of mathematics where the contributions of even nonspecialists count. Book jacket.