One I did, was lauded by Oprah (should have been a hint, had I known at the time), and made into a movie called wild, it was supposed to be about a woman who walked some long mountain trail after her mother's death and had a spiritually transformative experience. She made most of it up, she was totally unprepared,she spent more time screwing in campgrounds than actually walking, she started out as a self-absorbed brat, and her character hasn't changed - not by the end of the book, not after, by some accounts. I only read it to the end to see if something actually happened. Woeful book, but obviously had a marketing machine behind it.