Thus art is not an object, but an experience. So said Josef Albers, the father of hard-edge abstraction and the 1960s Op Art movement. This bold new catalogue collects the work of a generation of international artists who were fascinated by the physical laws of light and optics, visual phenomena and the principles of perception. Featuring key works by Victor Vasarely, Bridget Riley, François Morellet, Julio Le Parc and Gianni Colombo, among others, it offers a comprehensive outline of a complex art movement, with scholarly essays, historical precedents, a substantial plate section, biographies for each featured artist, selected bibliography and a detailed checklist. Here, viewers may drown in color, fall into an infinity of mirrors or engage in poetic plays of light.