Hill’s work has never been figurative - from the outset he was interested in abstraction and Constructivism. He spent two years at St Martin’s School of Art before switching to the Central School in 1949. In 1951 he began corresponding with several artists, including Duchamp, who had a profound influence of his development. Hill’s early work incorporated aspects of Dada collage, with elements of Dada continuing throughout his oeuvre. He built his visual language of elegant, balanced compositions through painting, before turning to relief constructions in 1956. In the 1960s Hill then developed his work using mathematical ideas. He started making collages under the name REDO, a Dada alter ego, in 1973.