He uses 35mm, Polaroid and 6X6 (I have no idea what that in actuality is, frankly). Possibly one of the first few photographers to bring in the dreamy feel/effect to good use in the photos. I found out about him from this Frankie Magazine's The Photo Album:
By the way, the photo on the cover of the book is not shot by him. I just found the guy referred to by one of the artist featured here. The guy's works weren't even in the album.
The mystery photographer is his name for now. I don't want to give his actual name away.