Thanks. I assumed the Victor Bockris one was the best. I've not got the New York Art book but it is in my Amazon basket. There seems to be a lot of new Warhol-related books recently. That whole scene seems to be getting a bit of coverage. I just got
this which as far as I know is the first full book-length study of Jack Smith and I've heard someone's writing a new biography of Ondine, which is almost unbearably exciting.