"The doctrine of the caliphate still animates the imagination of Muslim theologians, politicians and ideologues, as Hugh Kennedy shows powerfully in Caliphate."—Wall Street Journal
"Hugh Kennedy demonstrates in Caliphate: The History of an Idea, his readable but scholarly account, [the caliphate] was present throughout centuries of Muslim history, in a variety of guises."
— New York Review of Books
"[A] sweeping, yet deeply researched, history of popular and scholarly efforts-from the mid-seventh century to the present day....extraordinarily important..."
"British historian Hugh Kennedy takes it upon himself to recover the caliphate's meaning, and he succeeds with welcome doses of erudition, accuracy and, when necessary, empathy."—Washington Post
"An engaging portrait of a fascinating, multifaceted history."—Times Literary Supplement
"[An] engrossing and entertaining introduction... Kennedy clearly shows the continuing power of this idea to incite controversy."—Publishers Weekly
"Enlisting significant Arab-language scholarship, Kennedy provides a carefully calibrated, timely chronicle for nonacademic readers."—Kirkus Reviews