Planning theory is currently in a confused state as a consequence of a number of changes over the last ten years in planning practice and social and economic theory. Even prior to these events, planning theory was an uncertain discipline, reflecting planning's precarious position between and resting upon a range of professional subject areas and philosophical roots. Planning Futures is an attempt to pin down the constantly evolving landscape of planning theory and to chart a path through this fast changing field. Collaborative planning is used as a focus in this book to explore related theories, issues and concerns within the planning field which have emerged from or reacted to collaborative theory's dominant position in 21st century planning. Planning Futures is an up-to-date reader on planning theory, but adds something more to the subject area than a mere textbook. The contributors have attempted to bridge theory and practice while putting forward new theoretical ideas. By drawing upon examples from planning practice and case study scenarios, the authors ensure that the work discusses planning theory within the context of present planning practice. Case studies are drawn from an international arena. Heather Campbell, Bent Flyvbjerg, Neil Harris, Philip Harrison, Jean Hillier, Margo Huxley, Robert Marshall, Mark Oranje, Mark Pennington and Tim Richardson.