There are 101 non-fiction, and several fiction [scientificamerican.com], books credited to popular science and mathematics writer Martin Gardner (1914-2010) , who would have turned 101 on October 21. Among the myriad math problems that Martin presented in his influential Mathematical Games column in Scientific American over a 25-year period, quite a few of them spawned more questions than answers, which is actually a good thing.
The influence of the Mathematical Games brand and recognition of the importance of recreational mathematics continues today, and Martin’s readers now span several generations. His hard core fans continue to host invitation-only “Gatherings for Gardner” in Atlanta every two years and anyone (anywhere) can attend or host Celebrations of Mind in and around each October. Most importantly, people keep pushing the envelope by producing new solutions of substance to his conundrums as well as new twists on old plots.