The paper is based on ILO research carried out between 2003 and 2007. It summarizes largely qualitative research from ten European source, transit and destination countries. It is therefore the result of a collective effort of researchers from many countries. The purpose of this project was to close a gap in current research that exists up to today: Most trafficking-related research, in particular primary research, focuses on trafficking of women for the purpose of sexual exploitation. Other forms of trafficking, such as those linked to forced labour in labour-intensive economic sectors, are still under-researched and under-theorized.More information about human trafficking on the website of ILO.