A fantastic book. --Steven Soderbergh

When psychologist Kris Kelvin arrives at the planet Solaris to study the ocean that covers its surface, he finds himself confronting a painful memory embodied in the physical likeness of a past lover. Kelvin learns that he is not alone in this and that other crews examining the planet are plagued with their own repressed and newly real memories. Could it be, as Solaris scientists speculate, that the ocean may be a massive neural center creating these memories, for a reason no one can identify?

Long considered a classic, Solaris asks the question: Can we understand the universe around us without first understanding what lies within?

A novel that makes you reevaluate the nature of intelligence itself. --Anne McCaffrey

In the grand tradition of H. G. Wells and Jules Verne, Stanislaw Lem's The Invincible tells the story of a space cruiser sent to an obscure planet to determine the fate of a sister spaceship whose communication with Earth has abruptly ceased. Landing on the planet Regis III, navigator Rohan and his crew discover a form of life that has apparently evolved from autonomous, self-replicating machines--perhaps the survivors of a robot war. Rohan and his men are forced to confront the classic quandary: what course of action can humanity take once it has reached the limits of its knowledge? In The Invincible, Lem has his characters confront the inexplicable and the bizarre: the problem that lies just beyond analytical reach.

By pure chance, scientists detect a signal from space that may be communication from rational beings. How can people of Earth understand this message, knowing nothing about the senders--including whether or not they even exist?

Written as the memoir of a mathematician who participates in the government project (code name: His Master's Voice) attempting to decode what seems to be a message from outer space, this classic novel shows scientists grappling with fundamental questions about the nature of reality, the confines of knowledge, the limitations of the human mind, and the ethics of military-sponsored scientific research.

In Pilot Pirx, Lem has created an irresistibly likable character: an astronaut who gives the impression of still navigating by the seat of his pants-a bumbler but an inspired one. By investing Pirx with a range of human foibles, Lem offers a wonderful vision of the audacity, childlike curiosity, and intuition that can give humans the courage to confront outer space. Translated by Louis Iribarne. A Helen and Kurt Wolff Book

These fourteen science fiction stories reveal Lem's fascination with artificial intelligence and demonstrate just how surprisingly human sentient machines can be. Astonishing is not too strong a word for these tales (Wall Street Journal). Translated and with an Introduction by Michael Kandel.

Of these twelve short stories by science fiction master Stanislaw Lem, only three have previously appeared in English, making this the first new book of fiction by Lem since the late 1980s. The stories display the full range of Lem's intense curiosity about scientific ideas as well as his sardonic approach to human nature, presenting as multifarious a collection of mad scientists as any reader could wish for. Many of these stories feature artificial intelligences or artificial life forms, long a Lem preoccupation; some feature quite insane theories of cosmology or evolution. All are thought provoking and scathingly funny.

Written from 1956 to 1993, the stories are arranged in chronological order. In the title story, The Truth, a scientist in an insane asylum theorizes that the sun is alive; The Journal appears to be an account by an omnipotent being describing the creation of infinite universes--until, in a classic Lem twist, it turns out to be no such thing; in An Enigma, beings debate whether offspring can be created without advanced degrees and design templates. Other stories feature a computer that can predict the future by 137 seconds, matter-destroying spores, a hunt in which the prey is a robot, and an electronic brain eager to go on the lam. These stories are peak Lem, exploring ideas and themes that resonate throughout his writing.

Stanislaw Lem's Return from the Stars recounts the experiences of Hal Bregg, an astronaut who returns from an exploratory mission that lasted ten years--although because of time dilation, 127 years have passed on Earth. Bregg finds a society that he hardly recognizes, in which danger has been eradicated. Children are betrizated to remove all aggression and violence--a process that also removes all impulse to take risks and explore. The people of Earth view Bregg and his crew as resuscitated Neanderthals, and pressure them to undergo betrization. Bregg has serious difficulty in navigating the new social mores.

While Lem's depiction of a risk-free society is bleak, he does not portray Bregg and his fellow astronauts as heroes. Indeed, faced with no opposition to his aggression, Bregg behaves abominably. He is faced with a choice: leave Earth again and hope to return to a different society in several hundred years, or stay on Earth and learn to be content. With Return from the Stars, Lem shows the shifting boundaries between utopia and dystopia.

The Polish writer Stanislaw Lem is best known to English-speaking readers as the author of the 1961 science fiction novel Solaris, adapted into a meditative film by Andrei Tarkovsky in 1972 and remade in 2002 by Steven Soderbergh. Throughout his writings, comprising dozens of science fiction novels and short stories, Lem offered deeply philosophical and bitingly satirical reflections on the limitations of both science and humanity.

In Summa Technologiae--his major work of nonfiction, first published in 1964 and now available in English for the first time--Lem produced an engaging and caustically logical philosophical treatise about human and nonhuman life in its past, present, and future forms. After five decades Summa Technologiae has lost none of its intellectual or critical significance. Indeed, many of Lem's conjectures about future technologies have now come true: from artificial intelligence, bionics, and nanotechnology to the dangers of information overload, the concept underlying Internet search engines, and the idea of virtual reality. More important for its continued relevance, however, is Lem's rigorous investigation into the parallel development of biological and technical evolution and his conclusion that technology will outlive humanity.

Preceding Richard Dawkins's understanding of evolution as a blind watchmaker by more than two decades, Lem posits evolution as opportunistic, shortsighted, extravagant, and illogical. Strikingly original and still timely, Summa Technologiae resonates with a wide range of contemporary debates about information and new media, the life sciences, and the emerging relationship between technology and humanity.

Ijon Tichy is the only human who knows for sure whether the self-programming robots on the moon are plotting a terrestrial invasion. But a highly focused ray severs his corpus collosum. Now his left brain can't remember the secret and his uncooperative right brain won't tell. Tichy struggles for control of the lost memory and of his own two warring sides. Translated by Elinor Ford with Michael Kandel. A Helen and Kurt Wolff Book

Memoirs of a Space Traveler follows the adventures of Ijon Tichy, a Gulliver of the space age, who leads readers through strange experiments involving, among other puzzling phenomena, faulty time machines, intelligent washing machines, and suicidal potatoes. The scientists Tichy encounters make plans that are grandiose, and strike bargains that are Faustian. They pursue humanity's greatest and most ancient obsessions: immortality, artificial intelligence, and top-of-the-line consumer items.

By turns satirical, philosophical, and absurd, these stories express the most starkly original and prescient notions of a master of speculative fiction.