Dr. Lotfi Mohammad Ben Tahar is a Full Professor of Inorganic Chemistry at the Department of Chemistry in the College of Science at Northern Border University, Arar, Saudi Arabia. He holds a Ph.D. of Inorganic Chemistry from the University of Carthage, Tunisia, in 2001 AD. Since the academic year 1436/ 1437 AH until present, he is a Contracted teaching member with the Northern Border University. In the academic year 1438/1439 AH, he was the Head of Department of the Chemistry Department in the College of Science. Additionally, Prof. Ben Tahar also participated as a member or as president in various committees in both his Chemistry Department and the College of Science.