One thing I would like to clarify: Most of the films whose posters are in this book were done during the period where there was no X rating(which came in October 1968), but instead they were "adults only" films. Approximately 80% of the posters are of such films(many of which are considered lost or perhaps hidden in a basement or ???), usually companies like Something Weird video puts out these films.
There are some posters of XXX films in here(Deep Throat, Misty Beethoven, Debbie Does Dallas, a couple with John Holmes), but I would have liked to see more of those, hence my rating goes down a notch. I still recommend this book. (The most interesting poster to me was an "adults only" film with cowboy star Lash LaRue--I hope this film surfaces someday.)