V. Kasiian was a well-known and interesting artist. He worked in all graphic techniques – wood engraving, copper engraving, lithography and others. His drawing and water-colours are also well-known. He was the editor of “Taras Shevchenko: the Artist’s Heritage”, which contained all of Shevchenko’s known works. Since 1927 Kasiian’s numerous artistic works were displayed at exhibitions. V. Kasiian worked as a painter and book designer. He was one of the founders of the Association of Independent Ukrainian Artists.
He also edited his journal “Mystetstvo” and organized arts exhibitions. After his immigration to the USA he helped to found the Ukrainian Artists’ Association. Since 1990 he has painted over 50 churches in North America and Europe. His wall paintings and iconostases combine neo-Byzantine and modernist styles.