Through its very publication Graff’s book joins an already existing body of writing about 9/11, a corpus to which he is already a significant contributor as author of The Threat Matrix and “We’re the Only Plane in the Sky.” Accounts that dig into what came before 9/11, accounts that unfold the events of that day, accounts of what came after, all carry their own unique virtues and drawbacks, but I am grateful for them all and believe we need all of them because they talk over and next to and alongside one another. Graff’s volume is a crucial addition to writing about 9/11 because of its immersive power and its capacity to plunge the reader back into the day itself.