Opus 100 by Isaac Asimov, A guided tour though the first 99 books of America's foremost science writer, 1969, stated first printing, Houghton Mifflin Company. Book is in excellent condition The book jacket is clean but has a small closed tear on the bottom back. It is not price clipped and there is no odors, writing in book or bent pages. A clean and tight copy. The titles of Asimov's books are listed on the back of the book jacket (see photo). This has excerpts of Asimov's writing as different chapters in the book: Astronomy, Robots, Mathematics, Physics, Chemistry, Biology, Words, History, the Bible, Short shorts and Humor. I will wrap in mylar if requested.