''I often get asked, ''Who was your favorite person to photograph?'' or ''Who is the best person you ve photographed?'''' says photographer Perou. ''It''s always ''Marilyn Manson.'' Which is just as well, considering how many times I''ve photographed him.'' Perou has been photographing Marilyn Manson since a 1998 magazine cover shoot. Twenty-one years of collaborating have resulted in this unique book, featuring over 350 photographs including previously unpublished work, conceptual portraits, onstage and informal behind-the-scenes images, giving a rare insight into Manson''s world.