A president’s work is defined by two challenges: knowing what to do and finding the time to do it. While the first of these has commanded extensive attention, the second has received little to none—until now. is a groundbreaking study of the history, theory, and practice of modern presidential time management. Matthew N. Beckmann argues that the seemingly innocuous task of scheduling turns out to be anything but. In choosing what and who will fill their time, presidents determine their value, define their role, and drive their agenda. Combining extensive archival research with interviews spanning administrations from John F. Kennedy to George W. Bush, Beckmann exposes each president’s signature pattern in terms of when to work, how long to work, how much to pack in, what to prioritize, and whom to see along the way. In these ways, demystifies what John F. Kennedy called “the secret of the presidential enterprise.”