If you are like me, you spend an inordinate amount of time craning your neck in public places trying to see what people are reading. If you are one of the people who finds this behavior annoying and obtrusive, I apologize, because I can't stop doing it. I also can't stop myself from striking up random conversations with people who are reading books that I like, even though it's clear that they only want to be left alone to read.
To shield yourself from prying eyes (and also play a practical joke on people who are prying), you might want to check out Flap Art at http://www.flapart.ca/.
Some of these are mighty funny.