In collaboration with Jay Robert Nash, Ross authored The Motion Picture Guide, a comprehensive multi-volume set of encyclopedias written from the 1970s to the early 1980s, containing detailed descriptions of possibly every motion picture made up to that time, with a two-volume index, and a separate volume entirely dedicated to silent films, and yet another listing every actor (and other major creative credit) with that person's complete list of films. The regular encyclopedia editions alphabetized every sound feature from 1927 until 1983, the last volume having a separate section in the back for 1984 movies (and the deaths of that year) that were compiled too close to press time to include alphabetically among the other listings; and starting in 1985 until the early 1990s, an individual volume was released annually, with an obituary section for that year also included. It used a five-star rating system, and was perhaps the most complete single project to catalog every movie until the creation of The Internet Movie Database (IMDb).