The moment I finished "Do androids..." by Philip K. Dick, the moment I wanted to recommend it to everyone. For the first time in a while, it was really hard for me to put down a book (actually, turn my palm off) and go to sleep.
I'm not really into Sci-Fi, I stumbled upon this book in a funny way. Although I've seen Blade Runner (whose plot is inspired by this book) I had not heard of "do androids" ever. Instead, I found out about
the electric sheep screen saver in an article about
"distributed computing", if I may call it that way, in the Discover magazine (both links are very interesting). The screen saver guy tells in his website where he got the inspiration to name his project like that. The rest is history (hehe).
But I haven't told you about the book. Well, just a few words: PKDs style is not what you might call "high literature" (does that expression exist in English?), instead he has a lot of imagination and explores, beyond intelligent machines and extraterrestrial collonization, the human nature through the most diverse circumstances (like interacting with an android). Also, he has the gift to tell very interesting histories.
You can find an article about Philip K. Dick
here.