Being confused by which needle you need to use is a very common problem among new and some old sewers. So don't get discouraged! With so many different numbers and fabrics to choose from it can make you quite uncertain of the correct needle for your specific project. But don't worry! We're going to break it down for you and help you learn the basics about sewing machine needles. Let's start with the anatomy of a sewing machine needle. Needle Anatomy from Threads: http://www.threadsmagazine.com/item/3751/machine-needle-know-how Shank: Top portion of the needle, usually having a flat back, that is inserted into the sewing machine with the flat slide facing the back. Needle is tightened into place with a screw on the machine. Shaft: The body of the needle determining the needle size based on the width of the shaft. Front Groove: Slit above the eye that allows the thread to be flat against the needle. Point: Tip of the needle that p...