The Point of a needle is very important. This is what pushes--or pierces--the thread through the fabric. Choose the wrong one and you might just ruin your sewing project.
Here's a little run down of needle Points:
DO NOT use for Leather or other unwoven fabrics.
DO NOT use for Leather or Denim
DO NOT use for Regular or Knit fabrics
Having trouble threading your needle? Check out last month's post The Eyes Have It and our YouTube video on Sewing Needle Basics.