Айзек Азимов

'X' Stands for Unknown is a collection of seventeen nonfiction science essays written by Isaac Asimov. It was the seventeenth of a series of books collecting essays from The Magazine of Fantasy and Science Fiction, these being first published between January 1982 and May 1983. It was first published by Doubleday & …

Azazel is a character created by Isaac Asimov and featured in a series of fantasy short stories. Azazel is a two-centimeter-tall demon, named after the Biblical demon. Some of these stories were collected in Azazel, first published in 1988. The stories take the form of conversations between an unnamed writer and a …