Is a Lecturer in Geography at the University Cheikh Anta Diop. His main researchm focuses on urbanization, urban mobility and internal and international migration in Senegal. Teacher-researcher in the Faculty of Arts since 1996, he is currently director of studies at the Institute of Population, Development and Reproductive Health (IPDSR) and educational and scientific coordinator of the Master Project 'Migration and Intercultural Relations'(MIRI). He was a member of several scientific committees of international meeting on migration. Since 2006, he was team leader of Senegal's research program 'Migration between Europe and Africa' (MAFE). He is a member of IUESSP, UAPS and the Network Research Consortium for Applied Research on International Migration (CARIM) of the European University Institute.