In “Head On,” curator Dieter Schwarz spans cultures and decades to look at the evolution of sculptural depictions of the human face. Open at LGDR from September 8—October 15, Schwarz (who is the former director of the Kunstmuseum Winterthur and curator of Thomas Schütte Foundation’s Skulpturenhalle) has outlined nearly a century-long history of expression and its many approaches, seen across sculptures in an array of materials like bronze, painted steel, polychrome plaster, and ceramic. Through work by names like Joan Miró, Willem de Kooning, Lucio Fontana, and John Chamberlain, viewers can see the nuances used to convey the most intangible things (vulnerability, eros, the ineffable) in the context of both the hand of the individual artist and the times in which they existed.