A new issue of Numeracy is out. Mateusz Hohol (PAT): The Normativity of Mathematics: A Neurocognitive Approach. The first chapter from *In Pursuit of the Traveling Salesman: Mathematics at the Limits of Computation* by William J. Cook. A look at how the fall of Communism changed mathematics in the US. Carl E. Behrens on empiricism as an environment for humanist mathematics. A review of *Magical Mathematics: The Mathematical Ideas that Animate Great Magic Tricks* by Persi Diaconis and Ron Graham. An interview with Robert Kanigel, biographer of the Indian mathematician Srinivasa Ramanujan. The first chapter from *Elliptic Tales: Curves, Counting, and Number Theory* by Avner Ash and Robert Gross. Research suggests you can't do the math without the words. A review of *The Theory That Would Not Die: How Bayes’ Rule Cracked the Enigma Code, Hunted Down Russian Submarines and Emerged Triumphant From Two Centuries of Controversy* by Sharon Bertsch McGrayne (and more). A look at 6 small math errors that caused huge disasters.

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