Alexander Ivanov Ranev is a doctor in Pedagogical sciences at Sofia University. He is a lecturer at the Department of Social Pedagogy and Social Affairs at the FNSP of Sofia University "St. Kliment Ohridski". His lectures and exercises are in the field of pedagogy - theory of education, class management, working with children with behavioral difficulties, etc. He enriches his practical experience by teaching at a school for hearing-impaired children. as well as working with children with problematic behavior and with young adults from homes and institutions for children deprived of parental care. He organizes and conducts pieces of training for specialists working with children with problem behavior. He is an author of publications in the country and abroad.