Those interested in the circles, cups, and rings laboriously worn into stones for an unknown purpose will appreciate this guide, which chronicles the many locations of prehistoric rock art throughout Northumberland in England. Beckensall draws on years spent documenting rock art in this area to write a guide that contains knowledgeable and thorough entries, each with a map of the area, drawing of the object, and photographs of both, including a series of color plates. Annotation c. Book News, Inc., Portland, OR (booknews.com)