Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Best book on Economic Development ever written

The title of this book is slightly misleading, because the thesis of the book is that cities play an essential role in the process of economic development. Although its anecdotal style gives this book a disarmingly unsystematic appearance, this is a profound book. It is easily one of the most important books written during the 20th century. Economic development is something about which conventional marginal utility economics has very little to say. The Economy of Cities, therefore, fills a kind of void. It stands to conventional economics in much the same position as quantum physics stands to classical physics.A simply wonderful book.Lancelot Fletcher lrf@aya.yale.edu