Isaac Asimov in 1965

I have a special shelf set aside for the nonfiction writings of the late Dr. Isaac Asimov, because I enjoy his work so much. Asimov was a writer for most of his life, and wrote a total of more than 500 books, and innumerable short stories, articles, essays, and other pieces. He was also one of the finest science-explainers who ever lived, with a special knack for taking complex subjects and making them understandable to non-experts. I don't have anything resembling a complete set of his works - it would take more money and space than I have - but I've accumulated a nice collection of what I consider some of his best and most useful (to me, at least) books.