Prof Dr Zoltán Baracskai was my master; this means that I have spent 6 years with him in a traditional master-apprentice relationship. We still work together on most of our research projects and frequently publish together.
He is most interested in how people, and business executives in particular, take decisions. To this end he, with his team including me, developed the Doctus knowledge-based expert system shell. His most recent research is focused on the role of the coach. Zoltán is author of a few dozen conference and journal papers and 16 books (and growing).