This comprehensive text, by two British taxonomists, is an excellent summarization of our knowledge, to the present, of the field of flowering plant taxonomy. It is written from the standpoint of methods and principles, and, while differing in details and examples, is therefore similar to Simpson’s Principles of Animal Taxonomy, and Benson’s Plant Taxonomy. For the graduate student wanting background in the field, or for the taxonomist wanting to “pull things together,” this is an excellent and readable text, which this reviewer would highly recommend.