Hollis Clayson’s analysis of the visual culture of Paris takes root in the often overlooked fact that lighting (éclairage) was a key attribute of the City of Light in the 19th century. Clayson maintains that the forms of artificial illumination, their visual properties, and the era’s debates about them provided circumstances that stimulated aesthetically innovative art. The lecture analyzes the work of John Singer Sargent, Childe Hassam, and Mary Cassatt, and several of the era’s leading caricaturists, and takes place at the Guggenheim Museum on January 27, 2016.