By training a social psychologist, by temperament an environmental psychologist, and by practice a criminologist and urban researcher, Ralph B. Taylor is currently Associate Professor in the Department of Criminal Justice at Temple University. He received his Ph.D. in social psychology from Johns Hopkins University in 1977. He has held positions at Virginia Polytechnic Institute and State University ( Department of Psychology), and Johns Hopkins University ( Department of Psychology, Center for Metropolitan Planning and Research). He is co-editor of the quarterly journal Population and Environment, and a member of the editorial boards of Social Psychology Quarterly, and Environment and Behavior. His research interests include human territoriality, attachment to place, crime and fear in the urban residential environment, and community crime prevention. His articles have appeared in Basic and Applied Social Psychology, Environment and Behavior, Journal of Criminal Law and Criminology, Journal of Personality and Social Psychology, Journal of Research in Crime and Delinquency, and Urban Affairs Quarterly.