This Course (of veil) of Glénans is the 7ième edition (the 1st date of 1952) and yet it comes a fully original work. Fully? Yes, but who could count on the collective experience tens of assemblers who had already contributed to the six previous editions. This new edition of Glénans des Cours integrates recent technological developments, - electronic instruments, GPS, digital mapping, communications -, well as modifications in domain regulation, building materials and until the configuration marinas. It is not, therefore not a simple update of the previous edition, but well of a new book which is based on a tradition than 60 years of teaching sailing, well as on the latest advances in respect to navigation. With 1500 drawings and photos and 1056 pages to read, each will find his account, the beginner like the confirmed browser!