Krakow 1965, Literary Publishing House. 11x18 cm, pp. 302, (2), black and white illustrations in the text, publisher's hardcover. Very good condition (minor rubbing of the spine).
First edition. Cover, title page and illustrations by Daniel Mróz. A series of short stories by Stanislaw Lem set in a world of robots, with Trurl and Klapaucius as the main characters.