This is a comprehensive, practical manual for players, teachers, coaches, and officials at every level of the game. With step-by-step instruction, illustrated by sequence photographs and detailed color diagrams, the book includes techniques for each shot in the game, with solo and pairs practices; color photographs of the top players; details on rules and equipment; tactics, fitness, and mental approach; and aspects of coaching, refereeing, and marking.
I found this to be extremely helpful in understanding useful squash tips for a beginner. There are diagrams on proper form, drills, stretching and zone control. I reference this every so often for a basic reminder on what I should be improving in my play. I'm not sure I ever need another instructional book on squash.