Professor Zaretsky, PhD in Psychology, Professor of the Department of Individual and Group Psychotherapy of the Faculty of Psychological Counseling at Moscow State University of Psychology and Education. Russian representative at the Executive Committee of ISCAR, as well as a Russian ambassador for the ISCAR congress in Australia. Member of the editorial board of the journal “Consultative Psychology and Psychotherapy”. Prof. Zaretsky is leading scientific and practical seminars on reflexive activity approach to helping children with learning disabilities. Professor has published more than 280 scientific papers. Some publications in English: One step in teaching is one hundred steps in development: from idea to practice (trans. to English) // Cultural-historical psychology, 2016, №3. (Vygotsky’s Principle “One Step in Learning”: From Idea to Practice.) Kul’turno-istoricheskaya psikhologiya [Cultural-Historical Psychology], 2016. Vol. 12, no. 3, pp. 149-188. The Zone of Proximal Development What Vygotsky Did Not Have Time to Write // Journal of Russian and East European Psychology, vol. 47. No 6. November-December 2009, pp. 70-93.