 Symmetry by Marcus du Sautoy |  In Pursuit of the Unknown by Ian Stewart |  100 Essential Things You Didn't Know You Didn't Know by John D. Barrow |  The Math Gene by Keith Devlin |  Nature's Numbers by Ian Stewart |  Archimedes' Revenge by Paul Hoffman |  Mathematics by Timothy Gowers |  The Equation That Couldn't Be Solved by Mario Livio |  Professor Stewart's Cabinet of Mathematical Curiosities by Ian Stewart |  Is God a Mathematician? by Mario Livio |  Alex's Adventures in Numberland by Alex Bellos |  Asimov on Numbers by Isaac Asimov |  The Mathematical Tourist by Ivars Peterson |  The Joy of x by Steven Strogatz |  How Not to Be Wrong by Jordan Ellenberg |