Salah Aldeen El Shakhshir is a Research and Teaching Assistant at the Department of Urban and Regional Planning in the Engineering Faculty at An Najah National University. He works 29 years as a Teacher and instructor at three universities An Najah; Birzeit and Palestine Polytechnic. He teaches different disciplines in Architecture, Interior design in Art Faculty; landscape Architecture; Urban Planning and Urban Design. He prcticing as an Architect Engineer designed and supervised various kind of projects in residential; commercial; interior and landscaape projects. El Shakhshir participated in seminars; workshops, conferences in local and international levels.