I really like the cover art on these books, by Przemek Dębowski. They have a very suitable and appealing retro-future look, I'd encourage people to them out. I actually ordered one from Dębowski as a poster recently.
I used (and attributed) some of the wonderful cover art and illustrations by Lem and Mroz and others from his web site, to illustrate this article about "GPT-3 Riffs on Stanislaw Lem’s Cyberiad and SimCity, and Admits it’s an Evil Machine":
