Mhanna, A.H. 2025. The reality of professional development for public school teachers in Lebanon and its obstacles from the perspective of a sample of principals: Teacher training in the Beirut Governorate as a model. Journal of Educational and Psychological Sciences. 9, 7 (ملحق) (Jun. 2025), 23–40. DOI:https://doi.org/10.26389/AJSRP.E080125.