Regularly appears on "Greatest science fiction" lists.

    It was a simple mission. A standard crew.THE PROBLEMKai and his beautiful co-leader Varian, the best xenob-vet in the business, followed all the standard procedures -- but the results of their investigations were totally unexpected. Not only were the planet's creatures larger than anyone had anticipated and the geological finds smaller, but the rescue ship had inexplicably disappeared.THE NIGHTMAREThen suddenly on a world of giant swamp creatures and deadly predators, a curious change had come over many of the members of the ARCT-10 crew... a change that would lead all of them, in one way or another, into the primitive darkness of a future world.

    He is an eternal warrior destined to combat the Dark Lord through all time for dominion of the Earth. Follow him, servant of a great race, as he battles his enemy down the halls of time, from the caves of our ancestors to the final confrontation under the hammer of nuclear annihilation.

    During the space of twelve generations, the descendents of a crash on a water-covered planet have managed to adapt to the marine culture. But they are always at the mercy of the kragen, giant, squidlike monsters. The colonists can communicate with the biggest of these, King Kragen, and must appease him. But finally, one man has had enough of this life of slavery and sacrifice. Can he convince his fellow citizens that they must kill King Kragen? But...how can they do it in a world without weapons?

    . .Captain Pausert thought his luck had finally turned—but he did not yet realize it was a turn for the worse. On second thought, make that a turn for the disastrous*.Unlucky in love, unsuccessful in business, he thought he had finally made good with his battered starship Venture, cruising around the fringes of the Empire and successfully selling off odd-ball cargoes which no one else had been able to sell. He was all set to return home, where his true love was faithfully waiting for him ... he hoped.But then he made the fatal mistake of freeing three slave children from their masters (who were suspiciously eager to part with them). They were just trying to be helpful, but those three adorable little girls quickly made Pausert the mortal enemy of his fiancee, his home planet, the Empire, warlike Sirians, psychopathic Uldanians, the dread pirate chieftain Laes Yango—and even the Worm World, the darkest threat to mankind in all of space.And all because those harmless-looking little girls were in fact three of the notorious and universally feared Witches of Karres.

    But it wasn't until the extraordinary matter of the Earth-Boy, Angelo Pontevecchio, that the enmity between these two factions came to a definite head. It started as a contest of wills, waged between two opposing Martians for the soul of a single human child. Before the end, it threatened all life on both Earth & Mars.

    Delany's 1976 SF novel, originally published as Triton, takes us on a tour of a utopian society at war with . . . our own Earth! High wit in this future comedy of manners allows Delany to question gender roles and sexual expectations at a level that, 20 years after it was written, still make it a coruscating portrait of the happily reasonable man, Bron Helstrom -- an immigrant to the embattled world of Triton, whose troubles become more and more complex, till there is nothing left for him to do but become a woman. Against a background of high adventure, this minuet of a novel dances from the farthest limits of the solar system to Earth's own Outer Mongolia. Alternately funny and moving, it is a wide-ranging tale in which character after character turns out not to be what he -- or she -- seems.

    Only a hidden group of rebels can stem the humanoid tide...if it's not already too late.Fist published in Astounding Science Fiction during the magazine's heyday, The Humanoids--sceince fiction grand master Jack Williamson's finest novel--has endured for fifty years as a classic on the theme of natural versus artificial life.Also included in this edition is the prelude novelette, "With Folded Hands," which was chosen for the Science Fiction Hall of Fame.

    Now, in an extraordinary flight of the imagination a half-century in the making, he takes us to a most wondrous destination: into the heart of an Eternal Family.They have lived for centuries in a house of legend and mystery in upper Illinois -- and they are not like other midwesterners. Rarely encountered in daylight hours, their children are curious and wild; their old ones have survived since before the Sphinx first sank its paws deep in Egyptian sands. And some sleep in beds with lids.Now the house is being readied in anticipation of the gala homecoming that will gather together the farflung branches of this odd and remarkable family. In the past-midnight stillness can be detected the soft fluttering of Uncle Einars wings. From her realm of sleep, Cecy, the fairest and most special daughter, can feel the approach of many a welcome being -- shapeshifter, telepath, somnambulist, vampire -- as she flies high in the consciousness of bird and bat.But in the midst of eager anticipation, a sense of doom pervades. For the world is changing. And death, no stranger, will always shadow this most singular family: Father, arisen from the Earth; Mother, who never sleeps but dreams; A Thousand Times Great Grandmére; Grandfather, who keeps the wildness of youth between his ears.And the boy who, more than anyone, carries the burden of time on his shoulders: Timothy, the sad and different foundling son who must share it all, remember, and tell...and who, alone out of all of them, must one day age and wither and die.By turns lyrical, wistful, poignant, and chilling, From the Dust Returned is the long-awaited new novel by the peerless Ray Bradbury -- a book that will surely be numbered among his most enduring masterworks.

    The Shapers are genetically altered revolutionaries, their skills the result of psychotechnic training and artificial conditioning.Both factions are fighting to control the Schismatrix of humankind.The Shapers are losing the battle, but Abelard Lindsay--a failed and exiled Shaper diplomat--isn't giving up. Across the galaxy, Lindsay moves from world to world, building empires, struggling for his cause--but more often fighting for his life.He is a rebel and a rogue, a pirate and a politician, a soldier and a scholar. He can alter the direction of man's destiny--if he can survive..SCHISMATRIX

    Invasion by the warlike Ousters looms, and the mysterious schemes of the secessionist AI TechnoCore bring chaos ever closer.On the eve of disaster, with the entire galaxy at war, seven pilgrims set fourth on a final voyage to the legendary Time Tombs on Hyperion, home to the Shrike, a lethal creature, part god and part killing machine, whose powers transcend the limits of time and space. The pilgrims have resolved to die before discovering anything less than the secrets of the universe itself.THE FALL OF HYPERIONThe mysterious Time Tombs are opening and the Shrike that has risen from them may well control the fate of all mankind. The Ousters are laying siege to the Hegemony of Man and the AIs we created have turned against us to build the Ultimate Intelligence; God. The God of Machines. His genesis could mean annihilation for man.Something is drawing the Hegemony, the Ousters, the Als, the entire universe to the Shrike.Here is a superb vision of future technology and ancient religions, of scientific revelation and timeless mystery, of transcendent joy and mind-bending horror. Here is a Hugo Award-winning landmark in Science Fiction.

    Up the Walls of the World is the 1978 debut novel of Alice Sheldon, who had built her reputation with the acclaimed short stories she published under the name James Tiptree Jr. A singular representation of American science fiction in its prime, Tiptree’s first novel expanded on the themes she addressed in her short fiction. Known as the Destroyer, a self-aware leviathan roams through space gobbling up star systems. In its path is the planet Tyree, populated by telepathic wind-dwelling aliens who are facing extinction. Meanwhile on Earth, people burdened with psi powers are part of a secret military experiment run by a drug-addicted doctor struggling with his own grief. These vulnerable humans soon become the target of the Tyrenni, whose only hope of survival is to take over their bodies and minds—an unspeakable crime in any other period of the aliens’ history...

    But as the Skins invade bucolic Thallspring, Z-B's strategy is about to go awry, all because of: Sgt. Lawrence Newton, a dreamer whose twenty years as a Skin have destroyed his hopes and desires; Denise Ebourn, a school teacher and resistance leader whose guerrilla tactics rival those of Che Guevara and George Washington and Simon Roderick, the director who serves Z-B with a dedication that not even he himself can understand. Grimly determined to steal, or protect, a mysterious treasure, the three players engage in a private war that will explode into unimaginable quests for personal grace...or galactic domination

    They called him Charlie. He had big eyes, abundant body hair and fairly long nostrils. His skeletal body was found clad in a bright red spacesuit, hidden in a rocky grave. They didn't know who he was, how he got there, or what had killed him. All they knew was that his corpse was 50,000 years old; and that meant that this man had somehow lived long before he ever could have existed!

    His life is dominated by the place and the thriving black market in the alien products. But when he and his friend Kirill go into the Zone together to pick up a “full empty,” something goes wrong. And the news he gets from his girlfriend upon his return makes it inevitable that he’ll keep going back to the Zone, again and again, until he finds the answer to all his problems.First published in 1972, Roadside Picnic is still widely regarded as one of the greatest science fiction novels, despite the fact that it has been out of print in the United States for almost thirty years.