The book comprises an anthology of writings about planning and urbanism that first appeared in scientific journals or were given at congresses over the past 50 years. Together they describe a society, that of the so called advanced world, crisscrossed by radical transformations that both register and are revealing of equally profound changes in the forms and uses of the environment, constructed or otherwise. It retraces the fundamental themes of contemporary planning, often in their first reconnaissance. Here they are intertwined with the life experiences and researches of a commentator for whom atmosphere, places, persons are the real protagonists of this extended history. The author offers both the history of his discipline and an account of a personal and scholarly formation distant from the rhetoric of academia but rich in reflections and in truths . There is a preface by Carlo Olmo and a photo by Guido Guidi .