Welcome to Deck License Prep. This site contains a comprehensive set of books and study materials to assist Mariners with preparation for the U.S. Coast Guard Deck License examinations. The books have been published by Gregory P. Smith, Chief Mate Unlimited and professor for over 30 years. The books on this site contain the mathematical calculations required to solve each question and provide the references needed to look up the correct answers. Each chart plot that is provided is scaled to the size of the actual chart.
Book information and sample pages can be found on this site. To purchase any of the books, please visit my secure online bookstore @