Before Sudoku: The World of Magic Squares. This item is unavailable.Before Sudoku: The World of Magic Squares

A must-have for puzzle fans--a fascinating account of Magic Squares and Sudoku, ranging from ancient history to helpful tips on creating and solving them

Both authors are retired from the Department of Chemical Engineering at the University of Florida in Gainesville. Seymour Block, Ph.D., is a past president of the American Chemical Society, though he long ago became an aficionado of and expert on Ben Franklin. He's written two well-reviewed trade books on Franklin, not to mention several academic books in chemistry/chemical engineering (including one chemE reference book now in its 5th edition). Block has been interviewed on the History Channel on Franklin and his inventions and has written a number of popular articles on him, most recently the feature cover article for American History magazine (February 2006, "Benjamin Franklin: America's Inventor"). Santiago Tavares, Ph.D., has researched applied and computational math and is an author of one academic/professional math book.