For the average individual trying to manage in a polluted world, this is an eminently readable guide to the toxins we live with. The first part of the book includes an overview of toxic issues, discusses the major sources of toxic exposure (air, water, food, and consumer products), and deals with special groups of toxics like petrochemicals and radiation. Part 2 is an alphabetical listing of over 100 commonly occurring toxic substances. Each entry addresses properties, health effects, and protection and prevention methods, and provides suggestions for further reading. A cross reference to entries by exposure (``household activities,'' ``workplace contaminants'') is a useful aid. A much-needed, comprehensive reference for the lay reader, this book should be in all public libraries.-- Linda Knaack, Mt. Ida Coll., Newton, Mass.