WILLA MAC focuses primarily on Finnish modern art. However, the museum has a small collection of primitive art and a very limited collection of traditional art as well as a few works of graphic art. While acquiring the collections, great emphasis has been put on strong, integrated artistic themes as well as the artistic values of the individual items. The collection contains works of art from promising young artists as well as from established artists. The works form harmonious groups and they are suitable for public presentation.

The collections consist of over 800 works of art, mainly unique Finnish paintings from the 1980s to the present day. Although extensive already, the collections will continue to be increased and developed in the future. The specific era and the geographical area will provide a very good opportunity to seriously present the art of this sector. Because the museum can display also works of less known art and artists it has an excellent chance of giving a broad and versatile view to this specific era in Finnish visual arts.