Only 81 pages but absolutely packed with the best graphics and most concise and clear explanations of how to tune your sails and rig for optimum performance. We think it’s the best book available today on tuning. It will clarify the mystery of aerodynamics, helping beginning as well as advanced sailors to find, understand and remember the techniques necessary to get the most from their boat

Keywords: sail trim, trimming of sails, sail trimming, sailing