Dr Abu-Bakr Yagoub Ibrahim Mohammed is an Associate Professor of Community Medicine, and Head of the Community Medicine Department and senior lecturer at the College of Medicine, Elrazi University. He is registered as a Community Medicine Consultant at Sudan Medical Council. He has a Certificate in Medical Informatics from e HCF school of Medical Informatics. He is an External Examiner for the MSc degree in Public and Environmental Health and Health Education in the College – Medical & Health Studies Board – University of Khartoum (Sudan). He is an author of the book, A summary guide to practice Primary Health Care Essential Activities; the same version has been translated into Arabic. His new book, Lecture Notes in Community Medicin is under publication.