The great thing about yarn is it comes in an amazing variety of types and styles, allowing you to personalize your project with color and texture by choosing a yarn that fits your style. If you find a knit or crochet pattern you like, look at the yarn it recommends. By comparing the yarn weight listed on the skein, you can substitute another brand of yarn in the pattern. Yarn weights range from lace weight yarn and super fine cotton thread to create lightweight accessories, to the popular afghan or worsted weight, to bulky and super bulky yarns for projects that work up quickly. Besides yarn weight, you should also think about fiber content—what the yarn is made from—when selecting a yarn to use. Fiber contents range from natural fibers such as wool, cotton, and bamboo to synthetics such as acrylic and polyester, and everything in between. Pay attention to the care instructions listed on the yarn label to determine if the fiber content is appropriate for your project.