From the back of the book:
"Snaggletooth. Ephant Mon. Weequay. Nikto.
Though only glimpsed in the Star Wars movies, their unique appearance - their alienness - makes them some of the most memorable characters from this grand adventure.
From the seedy Mos Eisley Cantina to the poshest cruisers plying the Galactic Core, they are an important part of the Star Wars universe.
Aliens have civilizations spanning a million worlds, each with its own culture and history.
Galaxy Guide 12: Aliens - Enemies and Allies describes over 30 alien species, with illustrations complete game statistics."