There are many different types of machines. The two most important sewing machines are single needle machine and overlock machine.
The most commonly used overlock machines are: 3-threads, 4-threads and 5 threads. 3 and 4 threads are normally used on knitted fabrics.
5 thread is used on woven fabrics. In general, most people find the overlock machines is easier to control than the single needle machine. It takes a
lot more practise with the single needle to be able to sew some descent clothes than with overlock machines. In here, we are only going to teach you
the single needle and overlock machines since with these two machines, you can pretty much sew most clothes.