Counting themselves among those who contend that there are still important regional differences in the US despite homogenizing influences, historians Robbins (retired, Oregon State U.) and Barber (history, Portland State U.) present a narrative of the Pacific Northwest. After defining its boundaries and place in early American and Canadian histories, they trace the region's promise and its sociocultural and environmental realities in modern times. The book features maps, photographs of prominent citizens, art illustrations, and demographic tables. Annotation 2011 Book News, Inc., Portland, OR (booknews.com)