Tales of Pirx the Pilot

I associate Lem with high quality science fiction. There is solid science there, in each of the stories, which is appreciated by the engineer in me. These space-travel tales focus on many subtle details of what it would be like to zoom around the solar system routinely. And there is good fiction, too, especially in the first three of the five stories. I will happily procure and read the follow-up volume of Pirx tales.