ATD Fourth World is a global movement dedicated to combating poverty through solidarity and human rights advocacy. The organization is primarily staffed by the Volunteer Corps, a group of committed individuals from diverse backgrounds who work alongside at-risk populations to foster a more equitable society. Members share a modest living stipend, emphasizing voluntary simplicity that enhances their connection with those they serve. This close-knit team structure nurtures strong personal bonds as they support each other in addressing the complex challenges of extreme poverty.

ATD Fourth World offers a variety of programs aimed at community empowerment, including early childhood initiatives, youth activities, and cultural education. They advocate for social and environmental justice, engage politically to promote human rights, and conduct participatory research to better understand poverty's hidden dimensions. Additionally, the organization organizes events such as the World Day for Overcoming Poverty, fostering awareness and encouraging collective action towards eradicating poverty in all its forms.