In the 3rd edition of the leading introductory textbook to planning theory, Allmendinger provides a wide-ranging and up-to-date analysis of planning theories, how these relate to planning practice, and their significance. Moving away from a linear, chronological model of progress over time from one paradigm to another, Allmendinger explains how and why different theories have gained dominance in particular places at particular times, giving the reader a holistic view of the field of scholarship and to demonstrate the relevance of planning theory for practise. Planning theory has undergone significant changes in recent decades as new theories and perspectives have emerged. Allmendigner takes care to detail the historical evolution of planning theory and the key philosophical issues involved so as enable the reader to both understand and critique theories as they encounter them. This much revised edition of Philip Allmendinger's text draws upon both established theories and expands its scope of current thinking around neoliberalism, post-colonialism and post-structuralist thinking on politics, space and scale. This unique approach to planning theory means this is an essential for all students completing planning theory courses in Urban or Planning studies, at both undergraduate and postgraduate level.