A helpful collection of technical terms, jargon and factual information with a homely seasoning of opinion. This book is a useful glossary that helps practitioners in any natural resource management field keep abreast of the language of separate but related disciplines. Among other fields covered this dictionary encompasses terminology from ecology, pedology, mycology and geology. There are plentiful illustrations and invaluable conversion tables for the most obscure of measurements. The co-authors are both certified arborists and you can be sure that arboriculture is well represented in this book. There are also some strange metaphysical diversions taken; why is the entry on core shamanism so substantial? Is there perhaps some subliminal message here?