Twenty of the best science fiction novellas by one of the greatest authors of the genre, Isaac Asimov. Isaac Asimov was the Grand Master of the Science Fiction Writers of America, the founder of the ethics of robots, and one of the most prolific writers of both fiction and non-fiction. Asimov's short stories have been enjoyed by millions of people for more than fifty years.

Many of the stories in this collection are classics of the genre, including "The Martian Way," where the colonists on Mars must find an alternative source of water, as Earth threatens to cut off the supply of water to the red planet.

In these stories, Asimov's keen awareness of the possibilities of technology translates into human dilemmas that are more relevant than ever.