Celebrated poet, writer, actress, and civil rights activist Maya Angelou’s private collection of African-American art, most of which has never been shown publicly, is heading to auction at Swann Auction Galleries on September 15.

The collection of nearly 50 artworks, including pieces by Romare Bearden, Elizabeth Catlett, Melvin Edwards, and Jonathan Green, was directly consigned by Angelou’s estate to auction house’s African-American Fine Art Department. Angelou’s family are “happy to have the art that she loved, bring joy and inspiration to the lives of others,” according to a statement by the author’s son Guy Johnson.