Before the world went digital and any information could be accessed in the palm of your hand with your cellphone, movies were promoted through TV commercials, radio ads, and newspaper ads.
To find out what movies were playing in your area, you had to get a newspaper and look in the entertainment section for the theater listings to find out what was playing along with the showtimes.
The Theater Owner would get these press books for all the movies that were showing at their venues. They would select which size ad they wanted to pay the newspaper so they could run the ad to attract audiences to their theaters.
You can find a lot of these press books on E-bay. Some are missing pages or have ads cut out from previous use. I was very fortunate to have found this press book in excellent shape with no pages or spots missing.