For your consideration, here is the 1960 Pentax Guide Book for 35mm cameras, hardback with dust jacket, by W. D Emanual, published by The Focal Press, 80 pages.  It has some wear on the dust jacket.  There is a bit of printing missing at the bottom of the dust jacket.  Item pictured is the actual item up for sale and comes from a non-smoking household.  (327.326u-.7hc)