With over a 1000 works of art, the Rolando and Siv Pieraccini Collection is amongst the biggest donations Ateneum Art Museum has received from a private collector.

Nimiö designed a catalogue raisonné for the collection, which showcases high quality prints and drawings from forty-five 20th century Italian artists — including renown masters like Marino Marini, Giorgio Morandi and Walter Valentini. The catalogue is published in three language versions: Finnish, Italian and English.