Volume IV of the Fundamentalism Project of the American Academy of Arts and Sciences picks up where the previous one left off, giving a rich social, cultural, and historical account of the rise of fundamentalisms in the contemporary world, with separate sections on Christianity, Judaism, Islam, and the religions of South Asia. Like the other volumes, this massive work brings together a broad range of leading scholars who lack a uniform perspective. It is difficult for secular social scientists to discuss so emotion-laden a subject with total neutrality, and while this volume maintains a reasonably nonjudgmental tone, disapproval sometimes colors the evaluations. The portrayal of the impact of Protestant conversions in Latin America, for example, would have been more balanced had David Stoll's chapter on the evangelicals in Guatemala been complemented by the perspective of a sociologist like David Martin. Nonetheless, this book will be basic reading for anyone interested in this extremely important field.