Between life and death there is a library, and within that library, the shelves go on forever. Every book provides a chance to try another life you could have lived. To see how things would be if you had made other choices . . . Would you have done anything different, if you had the chance to undo your regrets?

A dazzling novel about all the choices that go into a life well lived, from the internationally bestselling author of Reasons to Stay Alive and How To Stop Time.