Derek Chadee is Professor of Social Psychology and directs the ANSA McAL Psychological Research Centre at The University of the West Indies, Jamaica. He has published several books and journal articles, and his research interests are in fear of crime, copycat behaviour and theories on social psychology.
Aleksandra Kostic is a Retired Professor of Social Psychology at the University of Nis, Serbia. Her research interests include nonverbal communication, emotional experience, and time perspective. She has co-edited the following books: Time Perspective, The Social Psychology of Nonverbal Communication; Social Intelligence and Nonverbal Communication; Positive Psychology: An International Perspective; Nonverbal Communication in Close Relationships - What words don’t tell us.