This convenient guide is an excellent single-volume introduction to the natural history of coastal Oregon, Washington and British Columbia. Divided by habitat, it covers plant life in detail with some information on associated invertebrates, reptiles, amphibians and a few mammals. With hundreds of color photographs of the flora and fauna of the region, this is an essential handbook for the serious naturalist and good browsing for those with a more casual interest.  (PNW10, $35.00)