John Walker (b. 1939) is a British painter and printmaker who uses three-dimensional shapes and flat elements to create images with acrylic paint. Born in Birmingham, England, he studied at studied at Birmingham School of Art. His early works were inspired by Post-Abstraction and Abstract Expressionism.In the 1970s, he created a series of large blackboard pieces using chalk and dry pigment and is best known for the two series, Blackboard Pieces and Juggernaut. His 1970s works were composed of glued-on individual painted patches of canvas on the main canvas, referred as “canvas collage”. His work is in the collections of galleries worldwide, including the National Gallery in Washington, D.C., and the British Museum in London.