Walkable City: How Downtown Can Save America, One Step at a Time by Jeff Speck
Reading Walkable City was a bit out of my reading comfort zone as I've never read a book about city planning before. So I learned a lot and didn't understand other things, but overall, this was an okay book to read, and it definitely encouraged me to walk to the places that I can walk to.
PS: Here's a neat website to check out: Walk Score. It will let you know how walkable your neighborhood is.