This book was written on the occasion of the International Conference "21st Century Slavery-The Human Rights Dimension to Trafficking in Human Beings" organized in Rome on May 15-16, 2002. The human beings traffic is a offence against human dignity, according to the words of His Holiness Pope John Paul II, who said: "[...] with political determination, it is possible to strike at the causes of the disorders which too often disfigure the human person."