Victor Minichiello, Ph.D., is an Adjunct Professor in the School of Public Health & Human Biosciences at La Trobe University, Melbourne (Australia), and Section Editor of BMC Public Health. An internationally recognized sexual health and public health researcher, Victor has published over 170 books and journal articles that have a high citation rate. He has published extensively on the male sex industry (over 20 journal papers), including invitations to contribute to four recent international edited books and an encyclopedia on men and masculinities, and is one of the world's top authorities on the subject. His research has focused on the sexuality issues of a number of marginalized groups, including men who have sex with men, sex workers, and older people. John Scott, PhD, is Professor, Faculty of Law, School of Justice, Queensland Institute of Technology (Australia). He is an internationally recognized sexual health and public health researcher. Since 2001, John has published one book, one book chapter, and eight peer-reviewed articles on the sex industry in Australia. He also has published two encyclopedia entries on aspects of the sex industry, and has presented numerous seminars and conference papers on the sex industry at national and international forums.