The document discusses the history, theory, aspects, and practice of urban planning. It begins with definitions of urban planning and discusses its origins in ancient civilizations. It then covers influential urban planning theories and thinkers from Hippodamus to modernists like Howard and Le Corbusier. The document outlines aspects of urban planning like aesthetics, infrastructure, transportation and discusses sustainable practices. It also discusses new master-planned cities and different levels of urban planning from national to municipal. In the end, it discusses impacts of urban planning on happiness, education and criminality.