While riding the subway, seeing what other people are reading is half the fun. I’m the sort of person who can’t read on subways, preferring to people watch, talk with friends, annoy the car with dramatic readings of the backs of Agatha Christie novels, etc.
But I love to see what others are reading. You get a wide variety on trains. The college kids finishing their homework. People reading foreign language newspapers. The current New York Times bestseller (I was surprised to see only one reader of The Lost Symbol on the train last Saturday) or other popular works. It made me happy to see someone reading Proust.
But the most popular train book I’ve seen? Eat, Pray, Love by Elizabeth Gilbert. It’s everywhere. I haven’t read it (and don’t plan to) but I like the cover, and that’s probably why I notice it. Conceptual typography is brilliant.