Eye in the Sky (1957)
by Philip K. Dick
255 pages - Collier
A science experiment gone wrong plunges a group of tourists into a surreal world that begins by being a lot like this one but soon it's obvious that different rules are in place. They're plunged into the subjective world of one of the group members, so that that individual's take on the world becomes the actual reality for everyone. When that person is finally incapacitated, they're plunged into another person's world. They spend time in the world of a religious crank, an ultra-middle-class housewife, etc.
This is the first 'early' book I read by PKD, and I quite enjoyed it. It's very matter-of-fact and direct without a lot of the twisted sleazy weirdness that would infect his later work. The plot is very thought-provoking about how we live our lives by certain rules, but those rules are entirely subjective and most people in the world probably wouldn't even acknowledge them as reality. To be honest, I had about 75 pages left in this book, and it was due back in the library tomorrow, so I considered if it'd be better to jam it in or abandon it. I decided to abandon it. I think I got the main idea though.