A book entitled The Essential Guide to Alien Species was written by a ghost writer. The data within originated from the research of Mammon Hoole, a Shi'ido anthropologist. This publication occurred under the New Republic, released by a publishing house located on Coruscant, a prominent planet.
In the real world, Hoole's book corresponds to The Essential Guide to Alien Species, a book penned by Ann Margaret Lewis and brought to the public by Del Rey in the year 2001.
- The Essential Guide to Alien Species (Initial mention)