From the reviews of the seventh edition: „Petrogenesis of Metamorphic Rocks is, like the preceding six editions, a fine and important book. By and large, it is precise and accurate, clearly written, logically organized and well focused. It is suitable as a text for serious, no-nonsense, one-semester undergraduate course in metamorphic petrology … . ‘Winkler’s 7th’ is a suitable text for the graduate level.“ (Tomas Feininger, The Canadian Mineralogist, Vol. 40, 2003) „This new edition of a classic text has packed in even more information than the previous editions. Extensive lists of up to date references, use of the most current data, and lists of currently available software and appropriate web sites add to the comprehensive content. … basic historical and scientific fundamentals are well covered and the very structured layout of the text makes basic information relatively easily to retrieve. … an excellent update to an excellent text.“ (Suzanne Miller, Geoscientist, Vol. 13 (9), 2003) „Petrogenesis of Metamorphic Rocks has been written with the intention of giving senior level undergraduate and postgraduate students the practical knowledge and understanding needed to interpret metamorphic rocks … . Overall the book is well presented and up-to-date … . this is definitely one of the best texts available for advanced courses in metamorphic petrology, or for individuals wanting a modern reference text. I thoroughly enjoyed reading it and I am sure I will use it as a source of information for teaching and research.“ (Ian Fitzsimons, The Australian Geologist, Issue 129, 2003)