Reading I Am Legend. I guess speaking Sci-fi-ishly Neville's attempts to scientifically understand the vampire plague make interesting reading, although generally the book's been an evocative read so far. The way Neville's state of mind swigs from giddy extremes seems so terribly real, which is great. They're very personal books, which I think is their strength Valis and Timothy Archer especially (I forget if the novel ever makes it explicit but Archer is based on a real person that Dick knew - Bishop James Pike.) Philip K. Dick isn't just writing about reality unbending and a weaving a surreal hypnotic mishmash of religious and cultural ideas - though, of course, he does that - he's talking about himself. That first line in Valis, the first PKD book I ever read, comes back to me sometimes - he can't get off the dope, and he can't get off trying to help people. PKD's easily one of the best sci-fi authors I've ever read for warping realities, but he never feels cold or clinical about it.