"The Art of War" by Sun Tzu

In my opinion, this is more of a meditative guide than a book about the rules of warfare. In the edition I read, the arranger provides quotations by other famous thinkers of ancient Asia, illustrating possible practical uses of each rule. This was, at times, helpful, and, at others, distracting. If left alone with just the writings of Tzu, I would have many questions but, also, with a greater satisfaction. Figuring out a riddle is far more satisfying than reading someone else's idea of the solution.