The first novel in Isaac Asimov's classic science-fiction masterpiece, the Foundation series—For twelve thousand years the Galactic Empire has ruled supreme. Now it is dying. But only Hari Seldon, creator of the revolutionary science of psychohistory, can see into the future—to a dark age of ignorance, barbarism, and warfare that will last thirty thousand years.

To preserve knowledge and save humankind, Seldon gathers the best minds in the Empire—both scientists and scholars—and brings them to a bleak planet at the edge of the galaxy to serve as a beacon of hope for future generations. He calls his sanctuary the Foundation.

The Foundation novels of Isaac Asimov are among the most influential in the history of science fiction, celebrated for their unique blend of breathtaking action, daring ideas, and extensive worldbuilding. In Foundation, Asimov has written a timely and timeless novel of the best—and worst—that lies in humanity, and the power of even a few courageous souls to shine a light in a universe of darkness.

I, Robot is a fixup novel of science fiction short stories or essays by American writer Isaac Asimov. The stories, which originally appeared in the American magazines Super Science Stories and Astounding Science Fiction between 1940 and 1950, are woven together by a framing narrative. In this narrative, the fictional Dr. Susan Calvin tells each story to a reporter in the 21st century.

The stories share a theme of the interaction of humans, robots, and morality. Together, they tell a larger story of Asimov's fictional history of robotics. The collection explores profound questions such as: What is human? And is humanity obsolete?

Asimov's Three Laws of Robotics are central to the narrative:

1. A robot may not injure a human being or, through inaction, allow a human being to come to harm.

2. A robot must obey orders given to it by human beings except where such orders would conflict with the First Law.

3. A robot must protect its own existence as long as such protection does not conflict with the First or Second Law.

These laws lay the foundation for a bold new era of evolution, opening up enormous possibilities—and unforeseen risks. As humans and robots struggle to coexist on Earth and in space, the future of both hangs in the balance. I, Robot not only changes our perception of robots but also challenges the timeless myth of man's dream to play god—with all its rewards and terrors.

Aldous Huxley's profoundly important classic of world literature, Brave New World is a searching vision of an unequal, technologically-advanced future where humans are genetically bred, socially indoctrinated, and pharmaceutically anesthetized to passively uphold an authoritarian ruling order–all at the cost of our freedom, full humanity, and perhaps also our souls. “A genius [who] spent his life decrying the onward march of the Machine” (The New Yorker), Huxley was a man of incomparable talents: equally an artist, a spiritual seeker, and one of history's keenest observers of human nature and civilization.

Brave New World, his masterpiece, has enthralled and terrified millions of readers, and retains its urgent relevance to this day as both a warning to be heeded as we head into tomorrow and as thought-provoking, satisfying work of literature. Written in the shadow of the rise of fascism during the 1930s, Brave New World also speaks to a 21st-century world dominated by mass-entertainment, technology, medicine and pharmaceuticals, the arts of persuasion, and the hidden influence of elites.

“Aldous Huxley is the greatest 20th century writer in English.” —Chicago Tribune

Un mundo feliz es un clásico de la literatura del siglo XX, una sombría metáfora sobre el futuro. La novela describe un mundo en el que finalmente se han cumplido los peores vaticinios: triunfan los dioses del consumo y la comodidad y el orbe se organiza en diez zonas en apariencia seguras y estables. Sin embargo, este mundo ha sacrificado valores humanos esenciales, y sus habitantes son procreados in vitro a imagen y semejanza de una cadena de montaje.