Bill Phillips is president of the International Association of Home Safety and Security Professionals. He is also the most successful author of security books ever. His best-selling The Complete Book of Locks and Locksmithing is currently in its sixth edition. Mr. Phillips also wrote McGraw-Hill's "Locksmithing," part of the Craftmaster series, and "The Complete Book of Electronic Security," also from McGraw-Hill. He is the author of the "Lock" article in the 1998 to 2006 editions of the "World Book Encyclopedia," and has written hundreds of security-related articles for professional and gener...