Joshua Bederson is the chief of Neurosurgery at the esteemed Mt. Sinai Hospital in New York City. New Yorker writer John Colapinto brings to vivid life what Dr. Bederson's professional life is like to show all the varied facets of his work, from extensive study and research to brain operations, one-on-one consultations with patients, and even staff meetings with fellow surgeons and students. Since Mt. Sinai is a teaching hospital, we learn alongside the residents and interns how Bederson trains neurosurgeons, passing along the knowledge and skills he honed over decades. The result is a multidimensional portrait of a man and a department, a practical guide for how to enter and learn the profession, as well as a moving glimpse into the world of patients and doctors who face some of life's most harrowing challenges.