This book presents the author's ideas on cleaning and preserving coins. He focuses on silver coins, since they are most susceptible to tarnishing, and gives examples of coins that should and shouldn't be cleaned. He names substances that should be used, and provides information about the albums that best protect against toning. Many silver coins, in the wrong albums, will continue to tarnish. Slabbed coins also can continue to tarnish, he says, if not protected.