Aby Warburg's Mnemosyne Atlas (1925-1929) is a prescient work of mixed media assemblage, made up of hundreds of images culled from antiquity to the Renaissance and arranged into startling juxtapositions. Warburg's allusive atlas sought to illuminate the pains of his final years, after he had suffered a breakdown and been institutionalized. It continues to influence contemporary artists today, including Gerhard Richter and Mark Dion. ...