Jan Franciszek Jacko PhD (doctorate in philosophy, habilitation in human management sciences) – researcher and teacher at the Jagiellonian University (Kraków, Poland), co-editor of Prospettiva Persona. Trimestrale di Cultura Etica e Politica (Teramo, Italy). His actual research interest is in rational choice theory. He also works in nonverbal communication, proxemics, games and business ethics. In his recent monograph (Negotiation tactics in the context of proxemics) he is puzzling over how physical space and human intentionality are mutually related to each other. He teaches philosophy, business ethics and body language (in English, German or Polish).

Besides it, he is professional pantomime theatre actor (pseudonym Jan Gembal) and communication trainer. He has staged his solo monodramas at theatres in Austria, Italy, Germany, Poland, Switzerland and the Principality of Liechtenstein. He temporarily works for theatre schools and business organisations (corporations, firms, companies) as an expert on or instructor in nonverbal communication.

Web-page: jacko.econ.uj.edu.pl