Over the next few decades, he published many books, both science fiction and philosophical/futurological, although from the 1980s onwards he tended to concentrate on philosophical texts and essays. In this work, Lem discusses philosophical implications of technologies that were completely in the realm of science fiction then, but are gaining importance today-like, for instance, virtual reality and nanotechnology. The Summa is notable for being a unique analysis of prospective social, cybernetic, and biological advances. In 1957 he published his first non-fiction, philosophical book, Dialogi (Dialogues), one of his two most famous philosophical texts along with Summa Technologiae (1964). His works were widely translated abroad (although mostly in the Eastern Bloc countries). Lem became truly productive after 1956, when the de-Stalinization period led to the 'Polish October', when Poland experienced an increase in freedom of speech. Translations of his works are difficult and multiple translated versions of his works exist. They are sometimes presented as fiction, but others are in the form of essays or philosophical books. His works explore philosophical themes speculation on technology, the nature of intelligence, the impossibility of mutual communication and understanding, despair about human limitations and humankind's place in the universe. In 1976, Theodore Sturgeon claimed that Lem was the most widely read science-fiction writer in the world. He is perhaps best known as the author of Solaris, which has twice been made into a feature film.

His books have been translated into 41 languages and have sold over 27 million copies.

Stanisław Lem (staˈɲiswaf lɛm) was a Polish science fiction, philosophical and satirical writer of Jewish descent.

სოლარისი by Stanisław Lem