I'm interested to hear about books that have changed your (photography) life. I've probably ready 100+ books on photography but nothing really profoundly changed the quality of my photographs until I read "Lighting for Digital Photography: From Snapshots to Great Shots" by Syl Arena. I literally was blind to this whole "light thing." I understood how light created pictures but not how it impacted my overall presentation. I learned I could alter light and make my images pop. Now I'm having fun playing with strobes and cheap P&S cameras that make my old pictures with bulky cameras look like crap. Now I'm wondering what other great books I might have missed. Please share books that have profoundly changed the way you take pictures.