Star Wars: From the Adventures of Luke Skywalker is the novelization of the 1977 film Star Wars, ghostwritten by Alan Dean Foster, but credited to George Lucas. It was first published on November 12, 1976, by Ballantine Books, several months before the release of the film. In later years, it was republished under the title Star Wars: A New Hope to reflect the retroactive addition of a subtitle to the film in 1981.Although the book contains some differences from the film, it also includes references to Palpatine and his rise to power in the prologue, setting up the backstory for future films. Source: Wikipedia (en)