Written by a sailing Olympian, this has been the most-trusted reference for racing sailors around the world for over 45 years and has sold 320,000 copies in the English language alone. The unique approach devised by Paul Elvstrom offers bird's-eye views and detailed explanations of how the rules are applied to racing situations, with each cross-referenced to the relevant case studies provided by World Sailing (formerly ISAF). Completely revised to cover the new rules for 2017-2020, Paul Elvstrom Explains also includes the full text of the racing rules, with a handy quick-reference guide highlighting the latest changes. There is also a confidence-building section on how to present your case in a protest and the back cover shows signal flags for easy reference on the race course. This is the perfect pocket reference for racers in every type of boat: dinghy, keelboat or yacht.