A few years ago, I bought this book:
Basically, you’re supposed to write a secret you’ve never told anyone else on a homemade postcard. The secret can be funny, poignant, sad and sometimes, scary. I remember one the person wrote that someone was in prison for something they had done.
It’s an amazing book. Reading people’s deepest secrets; things they’ve never told anyone else. Sort of being like a voyeur.
They are coming out with a sequel soon and I’m going to buy it too. There’s also a website: http://postsecret.blogspot.com/
You should check it out. VERY interesting.