Something for a lazy summer afternoon:
The Underground New York Public Library
I think my favorite is the 3 people reading My Family and Other Animals (a book my husband introduced me to years ago), Hullabaloo in the Guava Orchard and Borrower of the Night. The other thing is, obviously, just the sheer variety of the people of NYC, all classes, ethnicities and religions, and the even greater variety of book titles.
Also notice the Subway Look, which you can generally catch on the faces of those who are not reading. "I'm here, but I'm not here." The Subway Look is actually pretty close to a state of meditation, when done right.