202 pages
Published July 27, 1964 by Doubleday.
Collection of seventeen scientific essays by American writer and scientist Isaac Asimov. It was the third of a series of books collecting essays from The Magazine of Fantasy and Science Fiction.
Part I: Mathematics T-Formation (August 1963) One, Ten, Buckle My Shoe (December 1962) Varieties of the Infinite (September 1959) A Piece of Pi (May 1960) Tools of the Trade (September 1960) The Imaginary that Isn't (March 1961) Pre-Fixing It Up (November 1962)
Part II: Physics The Rigid Vacuum (April 1963) The Light that Failed (June 1963) The Light Fantastic (August 1962)
Part III: Chemistry Slow Burn (October 1962) You, Too, Can Speak Gaelic (March 1963)
Part IV: Biology The Lost Generation (February 1963) He's Not My Type (January 1963)
Part V: Astronomy The Shape of Things (September 1962) Twinkle, Twinkle, Little Star (October 1963)
Part VI: General The Isaac Winners (July 1963)