The first new edition of the ASSE Dictionary in 12 years includes many revised definitions as well as newly defined terms. This significant revision is the result of efforts by many contributors under the editorship of ASSE Consultants Division Administrator Richard Lack. A reference "must" in the fast-changing world of safety, health and environment, it is also–like all good dictionaries–thought-provoking. This is an invaluable reference for practicing professionals, students and anyone else who requires an authoritative reference.