Assistant Professor Dr. Ahmad Saleh is an Assistant Professor of Building Engineering Department in the Faculty of  Engineering & IT, An Najah National University, Nablus, Palestine. He is now the coordinator of the Building Engineering Department. From 2001 until 2008 he was a lecturer  at Architectural Engineering Department, Faculty of Engineering & IT, An Najah National University. Previously he had taught in the Architectural Department of the International Islamic University in Malaysia. His research and consultancy interests have been in the area of virtual reality, community participations, 3D computer visualization, and Building Information Modelling (BIM).