Arnold Mariashin was born in Leningrad (now St. Petersburg). His first experience with photography was at age eight.
He has continued to work with pictures in various media, graduating from the State University of Arts and Culture with a degree in film directing and a minor in photography and history of composition.
His archive counts hundreds of unsorted gelatin silver prints, some of them made in very limited editions of one to five prints.
He uses home-made small and large format cameras and develops and prints in a small darkroom set up in his apartment bathroom. Also he produce hand-made large format negatives coated with liquid emulsion.