Huge coffee table book from the 80s you can find for $10 if you're interested. After checking this out from the college library and having it out in the living room for a month, I am. Hockney's images can be so flat on the surface but have so much depth, at least his most renowned paintings. I love that later in life he obsessively photographed purely to solve "the problem" of photography (volume). I think he succeeded although mostly in a formal way. I might feel differently seeing those collages in person since I could see them having a bigger emotional impact at full-size. The included essays are great too.