"The Encyclopedia of Volcanoes" summarizes our present knowledge of volcanoes. Through its thematic organization around the melting of the Earth, it provides a comprehensive source of information on the multidisciplinary influences of volcanic eruptions--both the destructive and the beneficial aspects. The world's experts on volcanology have been consulted in the planning of this volume. Over 80 authoritative, concise cross-referenced entries elucidate the major concepts and influences of volcanoes on past and present-day processes.
"Encyclopedia of Volcanoes" is an impressive one-volume edition under the editorship of Haraldur Sigurosson.
I discovered this book browsing the stacks of my University library and scribed much useful information from it.
I love one-volume edition styles. Some people complain about the burden of having to carry one, but I would personally rather carry a twenty pound book, than having to lug around five or more volumes.