Book excerpt: Urban and regional planning is increasingly central to public policy in Australia and internationally. As cities and regions adapt to profound economic, societal and technological shifts, new urban and environmental problems are emerging - from inadequate systems of transport and infrastructure, to declining housing affordability, biodiversity loss and human-induced climate change. Australian urban land use planning provides a practical understanding of the principles, processes and mechanisms for strategic and proactive urban governance. Substantially updated and expanded, this second edition explains and compares the legislation, policy- and plan-making, development assessment and dispute resolution processes of Australia's eight state and territorial planning jurisdictions as well as the changing role of the Commonwealth in environmental and urban policy. This new edition also extends the coverage of planning practice, with a new chapter on planning for climate change, a more detailed treatment of planning for housing diversity and affordability, and a comprehensive analysis of the New South Wales planning system and its evolution over the last 30 years. Nicole Gurran is an associate professor in the Urban and Regional Planning Program at the University of Sydney. Her research focuses on comparative planning approaches to housing, ecological sustainability and climate change. Prior to joining the University of Sydney, she practised as a planner in several state government roles, focusing on local environmental plan-making, environmental management and housing policy. She is on the Executive Board of the International Urban Planning and Environment Association.