-Jon Meacham, The New York Times Book Review
"A well-informed and - bless the man - witty narrative guaranteed to please and at the same time displease every single reader, if hardly in identical measure.... The author's prose style is fluent, well-judged and wholly free of cant ... You will shut this large book with gratitude for a long and stimulating journey."
-The Washington Times
"A prodigious, thrilling, masterclass of a history book. MacCulloch is to be congratulated for his accessible handling of so much complex, difficult material ... He keeps the reader engaged with wit and choice anecdotes and throughout the entire book he retains his own distinctive, slightly irreverent perspective, and an unerring instinct for when to go from macro to micro history."
-John Cornwell, Financial Times
"He brings an insider's wit to tracing the fate of official Christianity in an age of doubt, and to addressing modern surges of zeal, from Mormons to Pentecostals."
"A triumphantly executed achievement. This book is a landmark in its field, astonishing in its range, compulsively readable, full of insight even for the most jaded professional and of illumination for the interested general reader. It will have few, if any, rivals in the English language."
-Rowan Williams, Archbishop of Canterbury
"Christianity is a tour de force: it has enormous range, is gracefully and wittily written, and from page one holds the attention. Everyone who reads it will learn things they didn't know."
-Eamon Duffy, author of Saints and Sinners
"The great strength of the book is that it covers, in sufficient but not oppressive detail, huge areas of Christian history which are dealt with cursorily in traditional accounts of the subject and are unfamiliar to most English-speaking readers ... His analysis of why Christianity has taken root in Korea but made such a hash in India is perceptive and his account of the nineteenth-century missions in Africa and the Pacific is first-rate and full of insight."
-Paul Johnson, author of The Quest for God