Mario Livio is head of the Science Division at the Hubble Space Telescope Institute, where he studies a broad range of subjects in astrophysics, particularly the rate of expansion of the universe. He is the author of one previous book, The Accelerating Universe (2000). He is a frequent public lecturer at such venues as the Smithsonian Institution and the Hayden Planetarium. He lives in Baltimore, Maryland.
"An enlightening, fascinating, well-illustrated, literate and (usefully) opinionated discussion. Covers historical, mathematical, and real-world appearances of the famous number. Of special interest are debunkings of some hoary myths (e.g., about the Parthenon) and connections to crystals, fractals, and music." —The American Mathematical Monthly