For the last five years people from all over the world have sent Frank Warren their intimate secrets. Then he shares them with the world.
He runs the Post Secret Web site, which so far has received half a million anonymous postcards from people who want to share something hidden about their lives.
Warren posts his favorites on the site every Sunday.
He also publishes Post Secret collections. His new book is called "Post Secret: Confessions on Life, Death, and God."
Some 600 students turned out to hear him read from the book, and share some secrets of their own, over the weekend at the University of Minnesota. Warren says even after 5 years, opening his mail is still a thrill.