I've never actually read the book, even though we studied it in school and I received high marks (grades), but I love the movie. I can't really comment on the quality of the novel, but regardless of our contemporary opinions on the writing and theme it is a classic and it has been important to American culture. I always liked the idea that Harper Lee wrote one classic novel and that was it. Unlike Kerouac who had a few mediocre scribblings or Salinger, who's other work most people can't name. A sequel or follow up work from Lee seems almost.... wrong. It's certain to disappoint because of the gigantic expectations linked to a literary classic. Kind of like SW Episode 1 or any movie by Tobe Hooper after the Texas Chainsaw Massacre. Salinger was smart in not really publishing much after Catcher. He wrote. He wrote the rest of his life, but with the instruction nothing was to be published until long after his death so that he wouldn't get massacred by critics and fans expecting another Catcher.