For almost forty years, Joe Tilson has been making and exhibiting constructions, reliefs, prints and multiples: works of great individuality, evocativeness, richness of meaning, superb craftsmanship, and - not least - dazzling visual impact in terms of colour, texture and structure. Originally associated with the British Pop movement in the early Sixties, he was soon led in a different direction by his deeply held convictions and dissatisfaction with...