Lem had a seemingly inexhaustible imagination, and this was one of his most fascinating books. If you like his more serious sci-fi books it's definitely worth a

Lem had a seemingly inexhaustible imagination, and this was one of his most fascinating books. If you like his more serious sci-fi books it's definitely worth a read. He always seems like he was operating on an entirely different plane than the science fiction writers of the USA, and even today his books feel fresh and insightful. Truly one of the greats.