About two years ago, the Royal Ontario Museum in Toronto, Canada, hosted a 40-year retrospective of his work.
Its size is very powerful.
His metal tapestries recall the golden shimmer of Klimt paintings, evokes weaving and cloth and even sculpture.
He used flattened liquor-bottle tops and "sews" them together with copper wire. His medium, introduced by Europeans, hints at the relationship between Africa and the Western world.