Otto Piene opens up new horizons in both art and art education. His book is a plea for more scope, more space for art--for making public property artful and making art public property--for freeing the arts from the tight economic bonds that give the curators and collectors a monopoly. He writes, "The artist-planner is needed. He can make a playground out of a heap of bent cans, he can make a park out of a desert, he can make a paradise out of a wasteland, if he accepts the challenge.... In order to enable artists of the future to take on planning and shaping tasks on a large scale, art...