I first ran in to Martin‘s work in back-issues of Scientific American. He stopped writing his Mathematical Games column in 1981, but my mentor Virgil Matheson had all the older issues and had a free hand in lending them out, albeit one-at-a-time. From my mentor, I also got the best math book I’ve ever read, Calculus Made Easy by Silvanus P. Thompson. A newer edition of the book came out in 1998–and who came on board as the 2nd author to revise and modernize the text? Yep, that’s who. -m