In these columns Gardner introduced hundreds of thousands of readers to the delights of mathematics and of puzzles and problem solving. His column broke such stories as Rivest, Shamir and Adelman on public-key cryptography, Mandelbrot on fractals, Conway on Life, and Penrose on tilings. He enlivened classic geometry and number theory and introduced readers to new areas such as combinatorics and graph theory.Now, this material has been brought together on one, searchable CD. Martin Gardner is the author of more than 65 books and countless articles, ranging over science, mathematics, philosophy, literature, and conjuring. He has inspired and enlightened generations with the delights of mathematical recreations, the amazing phenomena of numbers, magic, puzzles, and the play of ideas. He is our premier writer on recreational mathematics, a great popularizer of science and a debunker of pseudoscience.A profile and interview with martin Gardner is included in this collection.