The artist's name on the poster is not indicated. By assigning Artist Unknown to a poster it also could mean the artist used a chop mark whereby no signature is seen thus rendering the artist's identity anonymous.
Ukrknigotsentr" (Ukrainian Book Distributing Center) was an agency that collected libraries and books for the trade unions, factory reading rooms, collective farms, and district libraries. It distributed the publications of DVOU (United State Publishing Association of Ukraine). Their office was located at 11 Sergievskaia Square, Kharkov.