Signals: Evolution, Learning, & InformationBrian Skyrms presents a fascinating exploration of how fundamental signals are to our world. He uses a variety of tools theories of signaling games, information, evolution, and learning to investigate how meaning and communication develop. He shows how signaling games themselves evolve, and introduces a new model of learning with invention. The juxtaposition of atomic signals leads to complex signals, as the natural product of gradual process. Signals