Mr. Williams has done a fantastic job of clearly and effectively laying down the foundations of the Mahayana movement. This movement, arguably the most colorful of the incarnations of Buddhist thought and theory, has a convoluted past, and Mr. Williams has expertly shown the reader the origins of the Mahayana and the origins of modern Buddhism. The only criticism that would in any way deter the reader from thinking this work to be one of the definitive in the doctrine is William's unfortunate tendency to mix his opinions which are for the most part religiously based, with philosophical quandries. Mr. Williams is the European Secretary for the International Association of Buddhist Studies, and I feel as such his opinion surfaces on several issues, most notably in the chapter on the Saddharmapundarika Sutra. The educated reader, or at least the reader able to assimilate William's position, can, however, easily overcome the minor references to academia based on faith rather than empirical knowledge. All minor biases aside, Mahayana Buddhism: The Doctrinal Foundations is a superior work when compared to many mainstream texts used in Buddhist study, which tend to be more esoteric, or treat only specific facets of the huge diaspora that spawned Buddhist practice in so many countries. Mr. Williams has produced a great work of fantastic merit in regards to understanding Mahayana Buddhism, and should be lauded for his work which makes, in my humble opinion, a stupendous read.