The Friday 56 is hosted at Freda's Voice.
Check out the links for the rules and for the posts of the participants each week. Participants don't select their favorite, coolest, or most intellectual books, they just use the one they are currently reading. This is the book I'm reading right now:

Book Beginnings:
There are two things you know. One: you were there. Two: you couldn't have been there.Friday 56:
It should be the end of my miserable like, but someone catches me, holding me as I dangle by a single arm above doom.Comments: This fictional book is about a boy's descent into psychosis. He has a hard time distinguishing between reality and hallucinations. The book is based on experiences of the author's son. It is amazingly insightful and disturbing.