Zygmunt Kozak is the author of several hundred wooden sculptures and bas-reliefs depicting various themes. Most of his artistic oeuvre focuses on sacred sculpting, such as nativity scenes, the Pensive Christ, Our Lady of the Rosary, and figures of the saints. Some of the artist’s works present natural and patriotic themes, e.g. the national emblem, figures of statesmen and portraits of Polish Nobel Prize winners). Kozak has been actively involved in meetings propagating sculpting among children and youth for many years.