This book focuses on Stanisław Ignacy Witkiewicz, philosopher and controversial artist. It expresses the opinions of philosophers, museologists and artists, for whom Stanisław Ignacy Witkacy’s 130th birthday anniversary became an opportunity to view his works from the perspective of postmodernity. The authors concentrate on Stanisław Ignacy Witkiewicz as eminent and prophetic philosopher concerned about Western culture with its waning metaphysical feelings, master of gesture and poses, anticipating the postmodern theatricalization of life.