Dyron B. Daughrity writes a wide-ranging book on the history of Christianity intended to expand the horizons of college students with a similar formation to his own: Californian Protestantism (his own tradition is Restorationist). That it will do, to some extent. He writes breezily, if a little repetitively, because he has chosen a five-fold approach to his subject in which the five approaches (chronology, denomination, sociology, geography, biography) are not in practice as much differentiated as those headings might suggest: the common theme is mission and expansion. Daughrity has travelled extensively and writes with an attractive sympathy for Middle Eastern Christianity which will do much to enlighten his audience (although it is a pity that he continues to refer to Dyophysite Christianity as ‘Nestorian’; his empathy seems to lie more with the Miaphysite anti-Chalcedonians). His account of Orthodoxy is inclined to take the Orthodox at their own assessment, stressing their age-old traditions and failing to acknowledge that from the sixth to the fourteenth centuries, they were the major champions of innovation in Christianity – the triumph of iconodulia, the spread of the vernacular in worship, the invention of the iconostasis, the popularisation of hesychasm. Nor does he say much about the present unattractive exclusivism of the Russian Orthodox hierarchy in Moscow, or its cosying up to the Putin regime. Brits will note his inability to distinguish between England and Britain; those interested in the composition of the Bible will not find much exploration of the complexities of its component documents. In the discussion of the vast changes in Christianity over the last century, readers will not be perturbed by much acknowledgement of the huge revolution in gender relations which has posed such question-marks against traditional Christian models of authority. Nor, in relation to sexuality, does the ‘h’ word make its appearance; which is at least a change. There are extensive and informative statistical appendices.