The product is a textbook titled “Geology of Northern California” by Edgar H. Bailey, published in 1966 by the California Division of Mines and Geology. It is a trade paperback format book that focuses on the subject area of science, specifically geology. The book includes a color map insert, making it a valuable resource for students and educators interested in the geology of Northern California. Written in English, this textbook provides a comprehensive insight into the geological features of the region.