What is VALIS? This question is at the heart of Philip K. Dick's groundbreaking novel, the first book in his defining trilogy. When a beam of pink light begins giving a schizophrenic man named Horselover Fat (who just might also be known as Philip K. Dick) visions of an alternate Earth where the Roman Empire still reigns, he must decide whether he is crazy or whether a godlike entity is showing him the true nature of the world.

Bob Arctor is a dealer of the lethally addictive drug Substance D. Fred is the police agent assigned to tail and eventually bust him. To do so, Fred takes on the identity of a drug dealer named Bob Arctor. And since Substance D, which Arctor takes in massive doses, gradually splits the user's brain into two distinct, combative entities, Fred doesn't realize he is narcing on himself.

What if...a machine could murder one person while implicating another for the crime? An alien being looked like livestock but spoke like a philosopher? Earth was ruined by war, and Mars was humanity's only hope? Robots were created to wage an unending war on the ravaged surface of Earth while man hid underground? Peeking into the future showed a worse result with each look?

Ed Fletcher is a real estate agent with a normal life, until one day he leaves the house for work a few minutes later than he should have. He arrives at a terrifying, grey, ash world. Ed rushes home and tells his wife, Ruth, who goes back to the office with him. When they return, everything is normal. But he soon realizes people and objects have subtly changed.

On Mars, the harsh climate could make any colonist turn to drugs to escape a dead-end existence. Especially when the drug is Can-D, which transports its users into the idyllic world of a Barbie-esque character named Perky Pat. When the mysterious Palmer Eldritch arrives with a new drug called Chew-Z, he offers a more addictive experience, one that might bring the user closer to God. But in a world where everyone is tripping, no promises can be taken at face value.

Acclaimed science fiction luminary and a godfather of the genre’s remarkable offspring - cyberpunk - Bruce Sterling carries readers to a far-future universe where stunning achievements in human development have been tainted by a virulent outbreak of prejudice and hatred.

The Overlords appeared suddenly over every city - intellectually, technologically, and militarily superior to humankind. Benevolent, they made few demands: unify earth, eliminate poverty, and end war. With little rebellion, humankind agreed, and a golden age began.

From early work like "Rescue Party" and "The Lion of Comarre", through classic stories including "The Star", "Earthlight", "The Nine Billion Names of God", and "The Sentinel" (kernel of the later novel and movie 2001: A Space Odyssey), all the way to later work like "A Meeting with Medusa" and "The Hammer of God", this comprehensive short story collection encapsulates one of the great science fiction careers of all time.

The King of the Elves is the opening installment of a uniform, five-volume edition of The Collected Stories of Philip K. Dick, expanded from the previous Collected Stories set to incorporate new story notes, and two added tales, one previously unpublished, and one uncollected.

The most thorough statement of one of Emerson's recurrent themes, the need for each individual to avoid conformity and false consistency, and follow his or her own instincts and ideas. It is the source of one of Emerson's most famous quotations, "A foolish consistency is the hobgoblin of little minds." This essay is a considered a watershed moment in which transcendentalism became a major cultural movement. An American classic.

His name was Biron Farrill and he was a student at the University of Earth. A native of one of the helpless Nebular Kingdoms, he saw his home world conquered and controlled by the planet Tyrann - a ruthless, barbaric Empire that was building a dynasty of cruelty and domination among the stars. Farrill’s own father had been executed for trying to resist the Tyrann dictatorship and now someone was trying to kill Biron. But why? His only hope for survival lay in fleeing Earth and joining the rebellion that was rumored to be forming somewhere in the Kingdoms.

This classic science fiction masterwork by Isaac Asimov weaves stories about robots, humanity, and the deep questions of existence into a novel of shocking intelligence and heart.

Arkady and Boris Strugatsky are widely considered the greatest of Russian science fiction masters, yet the novel they worked hardest on, the one that was their own favorite and that listeners worldwide have acclaimed their magnum opus, has never before been published in English. The Doomed City was so politically risky that the Strugatskys kept its existence a secret even from their closest friends for 16 years. It was only published in Russia during perestroika in the late 1980s, the last of their works to see publication.

John Dortmunder and company are hired by an U.N. African Ambassador to steal the famed Balabomo Emerald from the hands of a rival African country. But their daring and clever burglarly goes awry, and the emerald slips through their fingers. Undaunted, Dortmunder chases the gem by plane, train and automobile in hot pursuit of the hot rock.

Jenkins was a robot. He was built to be the perfect worker, tireless and uncomplaining. But, quite unexpectedly, he also became a close companion to generation after generation of his owners as the human race matured, moved beyond the confines of its once tiny planet, and eventually changed beyond all recognition.