Jeremy McCarter has known Lin-Manuel Miranda since Miranda’s groundbreaking, white-hot musical Hamilton was in its earliest stages. In his introduction to the highly sought-after companion book Hamilton: The Revolution, co-authored by McCarter and Miranda, McCarter describes the book as a chronicle of two revolutions—the American Revolution of the 18th century, and that of the hip-hop-inspired Hamilton itself, “a musical that changes the way that Broadway sounds ... that lets us glimpse the new, more diverse America rushing our way.”