The term ""Star Trek" Expanded Universe" is not an official usage of Paramount Pictures, Simon & Schuster, or any other "Star Trek" licensee. The term is occasionally used within fandom by analogy with the "Star Wars" expanded universe as defined by Lucasfilm. However, the policies and practices pertaining to licensed Star Trek fiction are not identical to those used by Lucasfilm. For example, unlike in "Star Wars" fiction, there is no overall effort among the various licensees to integrate all "Star Trek" fiction into a single continuity. Although the majority of "Star Trek" novels in recent years have been written to be consistent with one another and with certain "Star Trek" comic books, they remain incompatible with many earlier novels and comics, and occasionally with contemporary novels as well.