Wow. What a find. It’s a weird perusal of elementary mathematics. The first chapter introduces number theory by the odd device of having you see if you can measure one-ounce potatoes using various integer-ounced weights and a scale, This is to build up to modulo math. It also covers Egyptian rationals, tiling, infinite sets, probability, and graph theory. It’s just weird and nice. Excellent if you’re just a simple mathophile. ( )