John Drury Clark (1907 - 1988) was an American
rocket fuel developer, chemist, and science fiction writer. In
addition to his work as a scientist, he was instrumental in the
broad revival of interest in Robert E. Howard's Conan
stories and an influence on the writing of Isaac Asimov, L. Sprague
de Camp, Fletcher Pratt, and other sci-fi authors.
Issac Asimov (1920 - 1992) was an American author and professor of biochemistry at Boston University, best known for his works of science fiction and for his popular science books. A prolific writer, he published more than 500 books, most notably the science fiction novels I, Robot and Foundation, and the popular science works, Guide to Science and Understanding Physics.
"It's rare that a book about as high-minded and serious a topic
as rocket science manages to be both highly informative and
laugh-out-loud funny. But if there's a better way to describe John
Clark's Ignition!, I've yet to discover it."
- Ars Technica