Tahar Lazhar Ayed is a Canadian born in Tunisia in 1973. He received his B.Sc. in economics and Social Sciences from Tunis El Manar University 1997 and his MBA in Marketing from the University of Quebec At Montreal, Canada in 2002. He earned his Ph.D. in strategies and organization from Tunis Al Manar university in 2009. The Research Thesis is done under the supervision of Canadian and Tunisian professors. He is now serving as an Assistant Professor (Visitor) in the College of Business at Umm Al-Qura University, KSA where he joined in 2012. He worked as a Marketing Manager at CFH Security in Canada from 2000 to 2004, a Lecturer in the School of Economics and Commerce (Tunis, Tunisia) from 2004 to 2006, a lecture and assistant Professor in the School Of Commerce (Sfax, Tunisia) from 2006 to 2012. He teaches Principles of Management, Data Analysis, Research methodology, cost accounting, etc. Dr Tahar Lazhar Ayed has published book chapters and scientific papers in different journals.