One of the kings of Broadway, Jerome Robbins shaped musicals like On the Town, The King and I, West Side Story, and Fiddler on the Roof, and collaborated with George Balanchine to create a vernacular American ballet. Yet Robbins also gave names to the notorious House Un-American Activities Committee, which blacklisted some of his colleagues. In this selection of writings, biographer Amanda Vaill gives us a sense of Robbins's extraordinary range as a thinker and artist; his diaries, poems, and drawings are mingled with letters to Leonard Bernstein, Aaron Copland, Laurence Olivier, and Stephen Sondheim.