Let's start a list of book recommendations.
Thomas Merton, The Seven Storey Mountain
This is an autobiographical account of his conversion to Catholicism and his decision to leave behind his urban intellectual life for the monastery. Deep. Excellent!
Recommendations in the comments.
This is the gag that I've been doing at the end of my show- it's different every time because I'm working it with local guys. But these guys had to be the best so far- with no rehearsal they pulled off the "heckling barbershoppers" routine. And their singing was great too. Have a look.