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.

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.