It's my understanding that Lucas doesn't even read the novels and when it comes to their approval (and also that of the movie novelizations) he has an employee read the content and forward him anything that he might not like or that might be questionable (such as character traits or anything that directly contradicts what he has done or wants to do in the future). The following is quoted on Wikipedia: In July 2001, Lucas gave his opinion on the matter of what is canon in Star Wars during an interview with Cinescape magazine: “There are two worlds here," explained Lucas. "There’s my world, which is the movies, and there’s this other world that has been created, which I say is the parallel universe—the licensing world of the books, games and comic books. They don’t intrude on my world, which is a select period of time, [but] they do intrude in between the movies. I don’t get too involved in the parallel universe.” Further, in an August 2005 interview in Starlog magazine: STARLOG: "The Star Wars Universe is so large and diverse. Do you ever find yourself confused by the subsidiary material that's in the novels, comics, and other offshoots?"LUCAS: "I don't read that stuff. I haven't read any of the novels. I don't know anything about that world. That's a different world than my world. But I do try to keep it consistent. The way I do it now is they have a Star Wars Encyclopedia. So if I come up with a name or something else, I look it up and see if it has already been used. When I said [other people] could make their own Star Wars stories, we decided that, like Star Trek, we would have two universes: My universe and then this other one. They try to make their universe as consistent with mine as possible, but obviously they get enthusiastic and want to go off in other directions."