Issue no. 4 of the Polish art periodical Studio. With written contributions by Stanislaw Piskor, Graznya Dobrenko, Marek Obarski, Wlodzimierz Pazniewski, Bozena Wieckowska, Waldemar Zyszkiewicz, John Cage, Klaus Schöning, Jerzy Tuszewski, and Lawrence Weiner. Printed in black-and-white. Text in Polish.