Chuck Palahniuk

Chuck Palahniuk thread. I want to start to read his books, but first, i want some questions answered. Wich one do you consider the best? How "mainstream" is this writer? What reputation does he have (i saw someone saying he's writing teenage literature)?

I watched the movie Fight Club-- should I read the book? The movie was fairly enjoyable albeit a tad immature and teenage-angsty.