When Breath Becomes Air is the beautiful and heart-wrenching memoir of Dr. Paul Kalanithi, a neurosurgical resident diagnosed with lung cancer in the last year of his training. When the life Paul and his wife Lucy imagined for their futures ceases in the face of his diagnosis, he works to understand what his new life will look like and how long it will be. Through various treatments, his struggle to return to work, and the birth of his first and only child, Paul details his personal journey of discovering the meaning of life, death, and the thin line separating them. He explores what it means to save a life---not only his patients’, but his own, as well.