Book excerpt: This book was first published in 1980. In this book, the author has tried to establish the main guidelines of a determinate analysis of the phenomena of urbanization and planning, in two principal stages. Firstly, the attempt to identify something of the broad social structure and logic within which these phenomena are embedded, and from which they ultimately draw their character. Second, to attempt to discover in detail the ways in which these phenomena appear within society, assume a specific internal order, and change through time.