Gather your crochet hook and some colorful yarn, and get ready to have fun with simple geometry. Designer Ruthie Marks explores 3 mathematical concepts to create more than 25 exquisite crochet designs: Dragon Curve designs include Luxury Scarf, Diamond Shawl, Craft Tote for All Reasons, Jute Doormat, Ruffles Afghan, and Labyrinth (wall hanging); Golden Ratio designs include Golden Scarf, Summer Wall Hanging, Star Afghan, Flower Power Pillow, Puzzle Placemats, and Garden Poncho; and Fibonacci Sequence designs include Scarlet Scarf, Striped Rug, Square Baskets, Afghans and Pillows, Circles Poncho, and Checkered Rug.