In the mid-twentieth century, Michael S. Gazzaniga made one of the great discoveries in the history of neuroscience: split-brain theory, the notion that the right and left hemispheres of the brain can act independently from each other and have different strengths.

In Tales from Both Sides of the Brain, Gazzaniga tells the story of his passionate, entrepreneurial life in science and his decades-long journey to understand how the separate spheres of our brains communicate and miscommunicate their separate agendas. From his time as an ambitious undergraduate at Dartmouth, as a member of its now famed "Animal House" fraternity, and his life as a diligent graduate student in California to the first experiments he conducted in his own lab; from meeting his first split-brain patients to his collaboration with esteemed intellectuals across disciplines, Gazzaniga recounts the trajectory of his discoveries. In his engaging and accessible style, he paints a vivid portrait not only of his discovery of split-brain theory, but also of his comrades in arms—the many patients, friends, and family members who have accompanied him on this wild ride of intellectual discovery.