We all carry a picture of the world in our mind, but is that "map" an assuredly true layout of the reality that surrounds us? If not, how can we use it to guide our steps toward the 21st century and beyond without creating shocks and surprises that impair our well-being and threaten our survival? We shall not survive, either as individuals or as a species, if our maps fail to reflect accurately the nature of the world that surrounds us. The authors attempt, through reviewing the origins, development, and current changes in individual and social cognitive maps, to prompt readers to become more conscious of their own map, and hence be better able to adapt it to the exigencies of our changing world. The book ends with a vision of the global bio- and socio-sphere: the unified cognitive map which is emerging in laboratories and workshops of the new physics, the new biology, the new ecology, and the avant-garde branches of the social and historical sciences. But Changing Visions recognizes that these sciences alone cannot promote the formation of faithful maps of lived reality, and that religion, common sense, and even art can fill in and sharpen one's world-picture.