This is your brain on puzzles. Everyone knows that puzzles can improve your brain function. Now a leading neurosurgeon and a noted puzzle designer team up to reveal the fascinating science behind it. Packed with illuminating insights and dozens of puzzles, this is both a lively book of popular science and an engaging set of exercises in developing a wide array of thinking and memory skills. About the Author: Richard M. Restak, M.D. , is a neurologist, neuropsychiatrist, and Clinical Professor of Neurology affiliated with the George Washington University Medical Center. He is the author of the bestselling The Brain --a companion to the PBS series of the same name--as well as The Mind, The Brain Has a Mind of Its Own , and The Brain: The Last Frontier . He lives in Washington, D.C..