His research and teaching are in the areas of planning theory and history, economic development, sustainable development, regional planning, and research methods. He is co-editor of the Readings in Planning Theory / Readings in Urban Theory series. He is also the co-author of The Rise of the Gunbelt: The Military Remapping of Industrial America. His writing on sustainable development won a National Planning Award from the American Planning Association. Most recently, Campbell was the keynote speaker at "Future of Metropolis" in Vienna, Austria.Campbell has a Ph.D. and master of city planning from the University of California, Berkeley and a B.A.S. from Stanford University.