You've probably heard of a yarn over, but have you heard of a yarn under in crochet? This hack makes for tighter stitches making it a great technique to use when making amigurumi! What is the difference? With a normal crochet YO, you place the hook underneath the yarn strand and then hook the yarn from below. With a yarn under (YU), you put the hook over the yarn strand and then hook the yarn from above. | Yarnspirations