Hichem Rejeb is Full Professor, Director of the "HPE" Research Unit at ISA-IRESA-University of Sousse, and promoter of several doctoral researches and MR. He is an educational expert at the Euro-Mediterranean University. The search field is on "The tree, the landscape, development and territorial issues". Lecturer and responsible for several fundamental and operational courses at the national, Maghrebian and European level (Trees, Landscape, Green Urbanism and Contemporary questions of development. Territorial). Author and co-authors of several books and articles specializing in landscape, planning, and morphogenesis. He has managed several international projects (technology transfer, interuniversity, etc.). He is a reader, evaluator and expert on several eco-development projects.