Written between 1945 and 1947, the essays in Sense and Non-Sense provide an excellent introduction to Merleau-Ponty's thought. They summarize his previous insights and exhibit their widest range of application-in aesthetics, ethics, politics, and the sciences of man. Each essay opens new perspectives to man's search for reason. The first part of Sense and Non-Sense, "Arts," is concerned with Merleau-Ponty's concepts of perception, which were advanced in his major philosophical treatise, Phenomenology of Perception. Here the analysis is focused and enriched in descriptions of the perceptual world of Czanne, the encounter with the Other as expressed in the novels of Simone de Beauvoir and Sartre, and the gestalt quality of experience brought out in the film art form. In the second part, "Ideas," Merleau-Ponty shows how the categories of the phenomenology of perception can be understood as an outgrowth of the behavioral sciences and how a model of existence based on perception sensitizes us to the insights and limitations of previous philosophies and suggests constructive criticisms of contemporary philosophy. The third part, "Politics," clarifies the political dilemmas facing intellectuals in postwar France.