Prof. Osman Abdelkarim obtained his PhD in high resolution molecular spectroscopy from the University of Sussex, England, and worked for the Late Sir H.W.Kroto. He taught physical chemistry at the Faculty of Science, University of Khartoum, Sudan; where he served also as Head of Chemistry Department and Dean of Faculty of Science. He then joined King Abdulaziz University, Saudi Arabia,to teach quantum chemistry and to do research focusing on computational catalysis. He works as an Editorial Consultant at King Abdulaziz University, Scientific Publishing center.