I don’t think any book changed my outlook, I always had the outlook, but there have been books that have made things much, much clearer for me, like epiphanies: Short stories by Borges, Cortzar, The Awakening by Chopin (easy there haters), The Last of the Just by Schwarz-Bart, Fireworks: Nine Profane Pieces by Carter. All have contributed little, important, lovely pieces to my life, and I hope there are more.