Bruce Yardley is Emeritus Professor at the University of Leeds and previously taught at the Universities of Manchester and East Anglia and has spent sabbaticals at Otago, ETH Zurich and Wisconsin – Madison. He has worked on many aspects of metamorphic petrology and crustal fluid processes, and has served as Chair of the Metamorphic Studies Group (1991-3), Science Secretary of the Geological Society of London (2002-6), President of the European Association of Geochemistry (2005-6) and also President of the Mineralogical Society of Great Britain and Ireland (2019-20). He has held a Harkness Fellowship, at the University of Washington (1974-76) and a Humboldt Prize at GFZ Potsdam (2009-11). Clare Warren is a Senior Lecturer and metamorphic geologist and geochronologist at the Open University, UK and has worked extensively on metamorphic rocks that form in subduction and continental collision zones. She has published a number of widely-cited papers, and has served as Treasurer and Secretary of the UK Metamorphic Studies Group and on the Mineralogical Society of Great Britain and Ireland Council. In 2020 she was the first recipient of the UK Metamorphic Studies Group's Barrow Award.
'If you want to teach or learn about metamorphic petrology, I would go no further than Yardley and Warren's An Introduction to Metamorphic Petrology. Its rigorous foundation for the study of metamorphic rocks delivers on the three most important 'C's - concise, clear and comprehensive. Virtually everything I have wanted to teach my students about metamorphic rocks is here, from basic mineralogical principles to chemographics, thermodynamics and tectonic applications, while the illustrations and end-chapter exercises bring home the concepts. I'm excited to improve the education of my students with this text!' Matthew Kohn, Boise State University 'This gem of a book is exclusively devoted to explaining metamorphic petrology, and contains abundant examples, illustrations and photographs to guide the reader through understanding the world of metamorphic rocks. The style of writing is very accessible, and the authors convey complex scientific concepts in an approachable way.' Sarah Penniston-Dorland, University of Maryland 'Yardley and Warren have succeeded with the impressive feat of transforming 'the classic Yardley' into a state-of-the-art metamorphic petrology textbook without losing the core concepts of the first edition. This new edition benefits from numerous thin section photomicrographs, three completely new chapters and a more didactic layout that includes end-of-chapter summaries and questions.' Thomas Zack, University of Gothenburg 'A key addition to this book, and one that I'm sure teachers and lecturers will appreciate and utilise, is a set of exercises at the end of each chapter. The illustrations are well chosen and well crafted (and include some beautiful photographs); this is an important component of the book, as these illustrations are critical for conveying complex processes. Overall, the authors have done a tremendous job in crafting a classic, into what I predict will also become an as popular and well-revered textbook.' Nick M. W. Roberts, Mineralogical Magazine