some favorite sci-fi books

A Fire Upon the Deep is the big, breakout book that fulfills the promise of Vinge's career to date: a gripping tale of galactic war told on a cosmic scale. Thousands of years hence, many races inhabit a universe where a mind's potential is determined by its location in space, from superintelligent entities in the Transcend, to the limited minds of the Unthinking Depths, where only simple creatures and technology can function. Nobody knows what strange force partitioned space into these "regions of thought," but when the warring Straumli realm use an ancient Transcendent artifact as a weapon, they unwittingly unleash an awesome power that destroys thousands of worlds and enslaves all natural and artificial intelligence. Fleeing the threat, a family of scientists, including two children, are taken captive by the Tines, an alien race with a harsh medieval culture, and used as pawns in a ruthless power struggle. A rescue mission, not entirely composed of humans, must rescue the children-and a secret that may save the rest of interstellar civilization. A Fire Upon The Deep is the winner of the 1993 Hugo Award for Best Novel.

The Hugo Award-winning SF saga is now available in one complete trade paperback edition, containing Cyteen: The Betrayal, The Rebirth and The Vindication. "A psychological novel, a murder mystery and an examination of power on a grand scale, encompassing light years and outsize lifetimes".--Locus.

When Enemies Become More than Friends -- THEY WIN In her first trial by fire, Cordelia Naismith captained a throwaway ship of the Betan Expeditionary Force on a mission to destroy an enemy armada. Discovering deception within deception, treachery within treachery, she was forced into a separate peace with her chief opponent, Lord Aral Vorkosigan -- he who was called "The Butcher of Komarr" -- and would consequently become an outcast on her own planet and the Lady Vorkosigan on his. Sick of combat and betrayal, she was ready to settle down to a quiet life, interrupted only by the occasional ceremonial appearances required of the Lady Vorkosigan. But when the Emperor died, Aral became guardian of the infant heir to the imperial throne of Barrayar -- and the target of high-tech assassins in a dynastic civil war that was reminiscent of Earth's Middle Ages, but fought with up-to-the minute biowar technology. Neither Aral nor Cordelia guessed the part that their cell-damaged unborn would play in Barrayari's bloody legacy.

Peopled by larger-than-life heroes and villains, charged with towering questions of good and evil, Atlas Shrugged is Ayn Rand’s magnum opus: a philosophical revolution told in the form of an action thriller—nominated as one of America’s best-loved novels by PBS’s The Great American Read. Who is John Galt? When he says that he will stop the motor of the world, is he a destroyer or a liberator? Why does he have to fight his battles not against his enemies but against those who need him most? Why does he fight his hardest battle against the woman he loves? You will know the answer to these questions when you discover the reason behind the baffling events that play havoc with the lives of the amazing men and women in this book. You will discover why a productive genius becomes a worthless playboy...why a great steel industrialist is working for his own destruction...why a composer gives up his career on the night of his triumph...why a beautiful woman who runs a transcontinental railroad falls in love with the man she has sworn to kill. Atlas Shrugged, a modern classic and Rand’s most extensive statement of Objectivism—her groundbreaking philosophy—offers the reader the spectacle of human greatness, depicted with all the poetry and power of one of the twentieth century’s leading artists.

From New York Times bestselling author Orson Scott Card, Ender's Game—adapted to film in 2013 starring Asa Butterfield and Harrison Ford—is the classic Hugo and Nebula award-winning science fiction novel of a young boy's recruitment into the midst of an interstellar war. In order to develop a secure defense against a hostile alien race's next attack, government agencies breed child geniuses and train them as soldiers. A brilliant young boy, Andrew "Ender" Wiggin lives with his kind but distant parents, his sadistic brother Peter, and the person he loves more than anyone else, his sister Valentine. Peter and Valentine were candidates for the soldier-training program but didn't make the cut—young Ender is the Wiggin drafted to the orbiting Battle School for rigorous military training. Ender's skills make him a leader in school and respected in the Battle Room, where children play at mock battles in zero gravity. Yet growing up in an artificial community of young soldiers Ender suffers greatly from isolation, rivalry from his peers, pressure from the adult teachers, and an unsettling fear of the alien invaders. His psychological battles include loneliness, fear that he is becoming like the cruel brother he remembers, and fanning the flames of devotion to his beloved sister. Is Ender the general Earth needs? But Ender is not the only result of the genetic experiments. The war with the Buggers has been raging for a hundred years, and the quest for the perfect general has been underway for almost as long. Ender's two older siblings are every bit as unusual as he is, but in very different ways. Between the three of them lie the abilities to remake a world. If, that is, the world survives. Orson Scott Card's Ender's Game is the winner of the 1985 Nebula Award for Best Novel and the 1986 Hugo Award for Best Novel. THE ENDER UNIVERSE Ender series Ender’s Game / Ender in Exile / Speaker for the Dead / Xenocide / Children of the Mind Ender’s Shadow series Ender’s Shadow / Shadow of the Hegemon / Shadow Puppets / Shadow of the Giant / Shadows in Flight Children of the Fleet The First Formic War (with Aaron Johnston) Earth Unaware / Earth Afire / Earth Awakens The Second Formic War (with Aaron Johnston) The Swarm /The Hive Ender novellas A War of Gifts /First Meetings

One of the most extraordinary, imaginative and ambitious novels of the century: a history of the evolution of humankind over the next 2 billion years. Among all science fiction writers Olaf Stapledon stands alone for the sheer scope and ambition of his work. First published in 1930, Last and First Men is full of pioneering speculations about evolution, terraforming, genetic engineering and many other subjects.