Olga Wieczorek-Trzeciak

86.93.Z - Psychology and psychotherapy activities, excluding medical activities

32.40.Z - Production of games and toys

47.61.Z - Retail sale of books

47.62.Z - Retail sale of newspapers, periodicals, and paper articles

47.64.Z - Retail sale of games and toys

47.69.C - Retail sale of other cultural and recreational products, not elsewhere classified

58.11.Z - Publishing of books

82.30.Z - Activities related to organizing fairs, exhibitions, and congresses

85.59.B - Courses and training for acquiring knowledge, skills, and professional qualifications in non-school forms

85.59.D - Other non-school forms of education, not classified elsewhere

85.69.Z - Educational support activities, not classified elsewhere

93.29.B - Other entertainment and recreational activities, not elsewhere classified