Richard Robinson's short history The Buddhist Religion is a mixture of facts about the rise and fall of various schools of Buddhism and some of the main tenets of their faiths. It is, unfortunately, not as detailed as one might like on the latter score. Two short chapters -- one introductory and one concluding -- describe the current state and potential future of Buddhism, but the bulk of the book examines Buddhism from its origin with the Buddha to roughly the second millennium C.E. Twenty-six pages are devoted to Buddhism during the life of the Buddha, forty-three are devoted to Buddhism in India, and thirty-five are devoted to Buddhism outside of India. What we know of the life of the Buddha is, of course, colored by myth and legend. Robinson is not shy to recount many of these. Of the later two topics, much of the work describes various religious beliefs, including celestial bodhisattvas, celestial buddhas, and the magical beliefs, particularly of Tantric Buddhism. Consequently, his title, The Buddhist Religion is appropriate. Anyone looking for a history of Buddhist philosophy should go elsewhere.
His treatment of the rise and fall of various schools is worthwhile, though. The reader gets a fairly clear outline of Buddhism's genealogy, but again, there is scant treatment (not to say no treatment) of the details of the doctrinal disagreements that led to various schisms. His treatment of the ideas characteristic of Buddhism outside of India is especially weak. One is presented instead with brief descriptions (in the style of biographical reference book entries) of important Buddhists in China and Japan. More print is devoted to the political fortunes of these figures than their doctrines. The treatment of Buddhism in Southeast Asia is even more cursory.
Robinson provides no bibliographic footnotes to his work, and only a few textual notes. The reader must be content with a list of "selected readings." No doubt, the selection is good and the list is not short, but anyone looking to confirm some bit of information or expand one's understanding of a topic is not well served by it. Robinson does provide a clearly organized list of Buddhist scriptures for the Pali, Chinese, and Tibetan canons.