I had it as optional and I read it out of my own volition and some of them still stays with me after almost thirty years. The one about writer wanted his robot to write stories, but in the end realizes that actually stories written by his robot are much better than his, want to turn the robot off but instead robot kills the writer... Makes you think about humanity, robotics, technology and what it is to be human or what is self-aware machine.

These were really light, nicely done stories but when you think about them, they introduce you to actual.problems that come with robotics and AI.

I am glad that I read those and kind of sad that I did not read more of Lem's books early in my life.