On March 9, 2018 students and teachers of Ukrainian-American Concordia University met Dr. Stefan Welk. Professor delivered a lecture on diplomacy and aspects of work of the diplomats. In particular, one of the issues was the importance of mastering the art of negotiation. The presented topic was very interesting for students and, upon completion of the lecture, students asked a large number of questions. Doctor of Economic Sciences, Professor, Head of the department of Public Institution “Institute of Environmental Economics and Sustainable Development of the National Academy of Sciences of Ukraine” Bystriakov I. K. also participated in debates.