Siddhartha Mukherjee, staff cancer physician at Columbia University Medical Center, presents a history of cancer. The author recounts the earliest documentation of the disease, profiles the first patients that received radiation and chemotherapy treatments, and remembers the American government’s “war against cancer” launched thirty years ago. Siddhartha Mukherjee spoke at Kepler’s Books in Menlo Park, California. He responded to questions from members of the audience. Dr. Maa also responded to questions.