Yarn Crafter is the ultimate reference guide for knitters and crocheters. Features include how-to videos and slideshows, a yarn weight chart, hook and needle size charts, yarn care instructions, calculators, and more: * general instructions on how to read patterns for both crocheters and knitters * needle and hook information, including pattern gauge, how different needle and hook materials can affect your project and technique, and size charts * knitting and crochet stitch library photos and instructions (for example: bobble, granny rows, shell, and more for crochet; basketweave, stockinette, ribbing and more for knitting) * common knitting and crochet abbreviations along with a growing list of tutorials (both video and slideshow) * yarn weight chart * information on the characteristics of the different types of yarn fibers and what works best for a given project * yarn care instructions symbol chart * project yardage chart * unit conversion calculator (yards/meters, inches/centimeters, inches/millimeters, and ounces/grams) * gauge calculator * yarn substitution calculator * decimal calculator * fraction calculator