Sway is a great book; it is one of the best ones I've read in some time. The last two to three chapters in particular really had me locked in. One of the authors, Ori Brafman, is also the co-author of The Starfish and the Spider, which is another "must read" in my opinion. I checked it out from my local library, but will be buying it soon. It's one of those books you want to have on your bookshelf at home.