Thomas Kowalski

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

73.11.Z - Advertising agency activities

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

90.11.Z - Literary activities and activities related to composing music

90.12.Z - Creative activities in visual arts

90.13.Z - Other creative activities

91.30.Z - Conservation and restoration activities and other supporting activities for cultural heritage