I came across this book recently, albeit it's been out a few years. It's called "The Art of Looking Sideways," by Alan Fletcher. You should own it. It's one of those books that you'll read once and be completely inspired. Then you'll put it on your bookshelf and forget about it for a little while. Sometime later you'll pick it up and thumb through it again. And put it away. And pick it up again. And put it away again. Pick it up. Put it away. Over and over, for the rest of your career.