Martin's books changed my life. In one particularly introverted and dark period of my adolescence I poured through them at the library. Thinking through hexafle

Martin's books changed my life. In one particularly introverted and dark period of my adolescence I poured through them at the library. Thinking through hexaflexagons, the game of life, multiple dimensions, and many more ideas kept me from brooding over my troubles. Good-bye, Martin. Thank you.