Circular knitting is a way of making clothes like hats and socks. Instead of making the clothes in a straight line, they are made in a circle. Imagine you have a big circle with lots of little needles sticking out of it. You put a ball of yarn on one end and start knitting. As you go around and around, you make a tube-like shape. It's kind of like a giant rubber band that gets longer and longer as you knit more rows.
The neat thing about circular knitting is that you don't have to sew anything together when you're done. The tube you made is already a complete piece of clothing! You can just bind off the stitches and you're done. Plus, the stitches are all connected, so there are no seams to itch or rub against your skin.
Circular knitting can be a bit tricky to learn at first, but once you get the hang of it, it's a really useful technique. Not only can you make hats and socks, but you can also make sweaters and even blankets using circular knitting. So if you want to learn how to make clothes that fit you perfectly and look super cool, give circular knitting a try!