Hardcover. NY, W. W. Norton and Co, 1st, 1973, Book: Very Good, Dust Jacket: Good, Hardcover, 416 pages, b&w diagrams and illustrations. Edge wear, small tears to price-clipped dust jacket. Else a clean, tight copy. A complete discussion of the effects of wind and its changes on racing strategy --- by one of the world's most successful sailboat racers. Races are lost by a failure to understand and predict changes in wind. This book is the first and only one of its kind to deal with the character of the wind as it applies specifically to the racer. It shows how surface wind is affected by season, time of day, temperature disparities, clouds and geography. It supplies the meteorology needed to understand surface winds, and it shows how to predict the many kinds of wind shifts. Above all it shows how to take advantage of this special knowledge.