A millennium into the future, two advancements have altered the course of human history: the colonization of the galaxy and the creation of the positronic brain. Isaac Asimov's Robot novels chronicle the unlikely partnership between a New York City detective and a humanoid robot who must learn to work together. Like most people left behind on an over-populated Earth, New York City police detective Elijah Baley had little love for either the arrogant Spacers or their robotic companions. But when a prominent Spacer is murdered under mysterious circumstances, Baley is ordered to the Outer Worlds to help track down the killer. The relationship between Baley and his Spacer superiors, who mistrusted all Earthmen, was strained from the start. Then he learned that they had assigned him a partner: R. Daneel Olivaw. Worst of all was that the "R" stood for robot---and his positronic partner was made in the image and likeness of the murder victim!

Both novels in one edition

Here are the original versions of some of Asimov's famous Grow Old With Me, his first novel, which was greatly expanded at Doubleday's request and published as Pebble in the Sky; the original novella version of his novel The End of Eternity; and the original short story version of Belief and the ending of the final revised novelette version of Belief. (The first two thirds of the story are same in both versions.) Asimov also supplies extensive introductions and afterwords to each story.

What does a writer who produced two hundred books do with his spare time? If his name is Isaac Asimov, he writes - on any and every subject of interest to his fertile mind. Informative, amusing, timely, and provocative - OPUS 200 is Asimov at his sparkling best in selections carefully culled from his second hundred books. Drawing on novels (which have won both the Hugo and Nebula awards), on short stories, serious essays, and on children's books, Asimov addresses himself to everything from Black Holes to biblical Canaan. Here is a taste of the intelligence, the craftsmanship, and the ingenuity that have made Issac Asimov the most prolific writer of science fiction in the world.

Asimov wrote the short story "The Ugly Little Boy" in 1958. But there is much more to the story of the little Neanderthal boy plucked out of time and transferred to the 21st century. Now, Robert Silverberg--in this second collaboration with Asimov--has made this sf classic into an engrossing novel-length tale.

"Youth", a science fiction novelette by Isaac Asimov, first appeared in 1952 and is one of the rare Asimov stories with alien characters.Slim is a boy whose astronomer father is visiting the country estate of an important industrialist. The industrialist's son, Red, has found two strange animals, and he enlists Slim in a plan to turn the animals into a circus act. The astronomer, meanwhile, tells the industrialist that he has been in contact with space aliens who want to open up their world to interstellar trade. Their world needs help, the astronomer says; for ever since the atomic wars that destroyed their old civilization, their world has been regressing. Unless something is done, their culture may face total collapse.