Star Wars: From the Adventures of Luke Skywalker wrote a novel called "Splinter of the Mind's Eye", which was originally commissioned by George Lucas for the purpose of being filmed as a low-budget sequel, as a fallback plan in the event that "Star Wars" did not do well. It was published in 1978, a year after the movie's release. This made it the first full-length original novel to be published in the Star Wars expanded universe. The next official novelization of a "Star Wars" movie was "The Empire Strikes Back" by Donald F. Glut in 1980. Star Wars: From the Adventures of Luke Skywalker Star Wars: From the
Star Wars: The Roleplaying Game later became the "Star Wars" expanded universe, and its sourcebooks are still frequently cited by "Star Wars" fans as reference material. Lucasfilm considered the West End Games' "Star Wars" sourcebooks so authoritative that when Timothy Zahn was hired to write what became the "Thrawn" trilogy, he was sent a box of West End Games "Star Wars" books and directed to base his novel on the background material presented within. Many of the first uses of "Star Wars" alien names (such as the Twi'lek, Rodian, and Quarren) appeared for the first time in WEG's "Star Wars" books. Even after Disney's reboot