MP: There are books, and they're very obscure. It's unlikely that any American book shop would have any of them. It's as simple as that.
Aperture is finally doing a book about Ghirri next year. Helmer-Petersen's book, "122 Colour Photographs," was published in 1947 and is out of print, of course. You can get Van der Elsken's books; "Hello," for example, is in colour, but they're not particularly his best colour pictures. No one has even heard of Carlos Siquier in America, let alone knows he has a book. There's one book by Peter Mitchell, which has some black and white and some colour, but he never did a book with his earlier body of work. John Hinde has a book out, in fact the one that I edited, "Our True Intent Is All For Your Delight: The John Hinde Butlin's Photographs."