This book is a substantially updated, revised and extended version of the book Volcanic Successions , published by Cas and Wright back in 1987. Divided into six major parts, it offers comprehensive information on magma properties; fragmentation processes; subaerial and subaqueous lava types and field textures; sub-volcanic intrusions; explosive or pyroclastic eruptions and deposits; surface sedimentary processes; hydrothermal alteration and lithification, and effects on volcanic rock textures; terminology and approaches to describing and mapping volcanic rocks and terrains; geology of volcanoes and facies models; volcanism and tectonic setting; and to conclude, volcanic-hosted resources. It is a highly up-to-date text, presenting a coherent flow of topics, together with excellent visual material to illustrate key points and deposit features. The new authorship team consists of Ray Cas, Guido Giordano and John Wright, all of whom have extensive experience across the complete spectrum of volcanological processes and deposit types discussed in this exciting new book. The authors approach the diversity of products in volcanic terrains as facies, and use facies analysis and interpretation as a means of constructing facies models for different volcanic settings and their resources. ­The book is intended as a textbook and research reference book for senior undergraduate and graduate students, researchers and professionals alike. “The production of this book is first rate, even exceptional, as all of the photographs are clear and well labelled, the captions are detailed and copious, and the diagrams and charts are, for the most-part, nicely uncrowded and easily interpreted. This book is a tour de force! It is extremely thorough and, as I said above, accessible to all levels of readers from undergraduates to professors and industry geologists." (Steve Self, Bulletin of Volcanology, Vol. 87 (4), 2025) This book is a substantially updated, revised and extended version of the book Volcanic Successions , published by Cas and Wright back in 1987. Divided into six major parts, it offers comprehensive information on magma properties; fragmentation processes; subaerial and subaqueous lava types and field textures; sub-volcanic intrusions; explosive or pyroclastic eruptions and deposits; surface sedimentary processes; hydrothermal alteration and lithification, and effects on volcanic rock textures; terminology and approaches to describing and mapping volcanic rocks and terrains; geology of volcanoes and facies models; volcanism and tectonic setting; and to conclude, volcanic-hosted resources. It is a highly up-to-date text, presenting a coherent flow of topics, together with excellent visual material to illustrate key points and deposit features. The new authorship team consists of Ray Cas, Guido Giordano and John Wright, all of whom have extensive experience across the complete spectrum of volcanological processes and deposit types discussed in this exciting new book. The authors approach the diversity of products in volcanic terrains as facies, and use facies analysis and interpretation as a means of constructing facies models for different volcanic settings and their resources. ­The book is intended as a textbook and research reference book for senior undergraduate and graduate students, researchers and professionals alike. Ray Cas is Emeritus Professor in Volcanology at the School of Earth, Atmosphere and Environment, Monash University, and a Visiting Professorial Research Adjunct at CODES, University of Tasmania, both in Australia. Ray has undertaken research in many modern volcanic and ancient volcanic settings around the world, including collaborative research with the resources industry. He has diverse research interests including: the differences between subaqueous and subaerial volcanism; controls on explosive and effusive eruption processes; dispersal and characteristics of pyroclastic deposits and lavas; surface sedimentary processes; kimberlite volcanism; reconstruction of ancient volcanic successions; Archean volcanism and geodynamics; volcanic hazards; and volcanic hosted natural resources. Ray has published extensively and co-authored the internationally acclaimed textbook “Volcanic Successions: Modern and Ancient” (1987) with John Wright. Ray was President of the InternationalAssociation for Volcanology and Chemistry of the Earth's Interior (IAVCEI) from 2011 - 2015. Guido Giordano is Professor in Volcanology at the Department of Science, University Roma Tre, Italy. Guido has studied volcanoes on all six continents, and developed a wide network of scientific collaborations becoming author of more than 160 international publications, editor of five monographs and several geological maps of volcanoes. His main areas of interest are the stratigraphy and facies analysis of modern and ancient volcanic successions, eruption transport and emplacement mechanisms of pyroclastic density currents, caldera f