What happened along the evolutionary trail that made humans so unique? In his accessible style, Michael Gazzaniga pinpoints the change that made us thinking, sentient humans different from our predecessors. He explores what makes human brains special, the importance of language and art in defining the human condition, the nature of human consciousness, and even artificial intelligence.

Michael S. Gazzaniga is internationally recognized in the field of neuroscience and a pioneer in cognitive research. He is the director of the SAGE Center for the Study of the Mind at the University of California, Santa Barbara. He is the author of many popular science books, including Who's in Charge? (Ecco, 2011). He has six children and lives in California with his wife.