With degrees from Oxford University, and visiting academic positions at universities including Columbia and Notre Dame, he has written several books and other publications. His book Sugar and Modern Slavery was one of the first to draw attention to new forms of forced labour and trafficking in today's global economy. Special areas of interest include human rights and labour standards, migrant workers and contract labour, rural development, indigenous peoples and ethnic minorities, and corporate and social responsibility. He has consulted on these issues for a range of international organizations and governments, for financial institutions including the Asian and Inter-American Development Banks, and for private companies and NGOs. He has travelled extensively throughout the world and has broadcasted regularly for the BBC, CNN and other major media outlets. He speaks English, French, Spanish and Russian.