The core of the Centre's collections consists of I.J. Paderewski's private library (which includes books, music prints and manuscripts). The collections also include valuable archival items concerning, for instance, Paderewski's political activity. The Centre also collects Polish and foreign publications connected to Paderewski and records of his social life, such as concert programs and posters, cuttings (from concerts, festivals and celebrations dedicated to Paderewski) and photographs (originals and reproductions).