Catalog of Intelligent Life in the Galaxy

The Catalog of Intelligent Life in the Galaxy, Revised Edition, was a written by Imperial sentientologist Odo Rin as a reference for other sentientologists and Imperial personnel. It described a large proportion of the sentient species of the galaxy. The work was written under the patronage of Darth Vader.

Behind the scenes
The Star Wars: The Roleplaying Game supplement Galaxy Guide 4: Alien Races was written as though it were made up of excerpts from Odo Rin's work, together with a few of Rin's personal annotations to Darth Vader. The introductory material noted that since Rin was a stauch Imperial loyalist, some of the information may not have been accurate. "Gamesmaster's notes" were also included, written from an "out-of-universe" perspective, pointing the reader to the "real story".