Synergetics: Explorations in the Geometry of Thinking
By R. Buckminster Fuller
Buckminster (Bucky) Fuller said that thought has shape. To follow the shape of his thought, I recommend this and Synergetics 2, published a few years later. Synergetics 2 has the index, which helps one navigate through that thought (It really does.). If you find these difficult to read, I recommend his I Seem to Be a Verb, and Critical Path. Synergetics, according to Arthur C. Clarke, was "The distilled wisdom of a lifetime."