The chapters of this book first appeared in *Scientific American*'s monthly "Math Games" column. Among the topics covered, let's mention: optical illusions, random walks, Boolean algebra, spheres and hyperspheres, cyclic numbers, Fibonacci numbers. Solutions to all problems.
Martin Gardner was an American popular mathematics and popular science writer with interests also encompassing scientific skepticism, micromagic, philosophy, religion, and literature – especially the writings of Lewis Carroll, L. Frank Baum, and G. K. Chesterton. He was also a leading authority on Lewis Carroll. *-- Wikipedia*