In Great Balls of Yarn's four boutiques, knitters and crocheters of all experience levels browse more than 20,000 balls of yarn, including luxurious fibers from Trendsetter and Noro as well as hand-dyes from Prism and Malabrigo. Talented fiber artists guide knitters and crocheters as they transform vibrant fibers into wearable works of art during beginner through advanced classes. Project-specific sessions focus on creating table runners, borders for blankets, and baby booties to keep wee ones' feet warm and steps soundless during midnight refrigerator raids. Amid the shops' soft lighting, tapestries intermix with shelves of color-coded worsted and washable yarns alongside cashmeres and silks. Great Balls of Yarn also arms textile technicians with needles, notions, and books full of inspiration and yarn-charming incantations.