Have you ever found yourself in your LNS (local needlework shop) staring at the selection of needles and wondering what size you should use? Yeah, I'll admit I've been there. Personally I prefer a larger numbered needle, which is actually smaller, regardless of what count fabric I'm stitching on.
I have found an awesome explanation of to what size needle you should use for what count fabric, along with some explanations of the different types of needles over at Cross Stitch Needleshop. If you're interested in learning more, just click here.