Isaac Asimov

Adding a Dimension is a collection of seventeen scientific essays by Isaac Asimov. It was the third of a series of books collecting essays from The Magazine of Fantasy and Science Fiction. It was first published by Doubleday & Company in 1964.

Foundation's Edge is a science fiction novel by Isaac Asimov, the fourth book in the Foundation Series. It was written more than thirty years after the stories of the original Foundation trilogy, due to years of pressure by fans and editors on Asimov to write another, and, according to Asimov himself, the amount of …