Using the right or wrong needle for the job can make or break your project that you’ve worked on for hours, days, or months. Figuring out which needle is right for your fabric selection is tricky, but below I’ve created two handy phone-friendly infographics for you to reference the next time you need to buy needles! And a bit extra, the anatomy of the machine needle and what all these different types of needles look like up close. For reference, a self-threading needle is a universal needle with a small slit to make it easier to thread, these are recommended only for stable wovens, mainly quilting cottons and their ilk.