When it comes to different yarn types, you differentiate between them based on their size and style. Both factors are important to note while learning how to knit. Acrylic yarn is one of the most widely used ones as it is a little cheaper than others. However, it is not as breathable or absorbent as wool. Wool yarn is another popular choice, as it is breathable, highly absorbent, long-lasting, and softens over time. It also requires a little less washing than other fibres. Ribbon yarn has become quite popular in the last few years. It looks exactly like a craft ribbon and is used to knit bulkier patterns like a sling bag.