Fractal Cosmos 2013 Wall CalendarFractals are the visual depictions of mathematical equationsthe same equations, in fact, that describe natural phenomena such as coastlines, plant shapes and weather patterns. | Fractal Creations 2013 Hardcover Engagement CalendarFractals are intricate and fabulously beautiful constructions generated electronically through the use of mathematical algorithms. | Fractals 2014 Wall CalendarFractals Wall Calendar: Immensely fascinating and extraordinarily beautiful, fractal artwork is created using mathematical formulas and fractal-generating software. | Scientific American Mathematical Games Knowledge CardsThe sharpest puzzle purveyor working in the English language, the great Martin Gardner wrote his Mathematical Games column for Scientific American in 1956. |