His work was mainly exhibited in the mid 90's and 2001-2003, and several pieces can be found throughout europe, including Finland, England,Belgium, Hungary and Italy.
Materials of choice are usually Marble, clay (ceramics), plaster or wood. Motives vary greatly from local celebrities, fotballplayers, politicians to close friends.
Inspiration comes mostly from the nature itself or his inner mood. In life, Istvan often travels abroad, speaks four languages and has a great interest in buddhism and foreign cultures.
Among the greatest moments as a sculptor was the 2005 exhibition in
London (Society of portrait sculptors), with the portrait of Swedish writer Astrid Lindgren. The most recent portrait, that of Maria Montessori, was sold in January 2007 to the school by the same name.