Complex sentence: Void distributors, 1980 made him the central reference for the definition of the concept of the artist book and his bookshop gallery Other Books and So "became a mythologized paragon in the history of artists" books.
Split into simpler sentences: Void distributors, 1980 made him the central reference for the definition of the concept of the artist book. Also his bookshop gallery Other Books and So "became a mythologized paragon in the history of artists" books.