Sewing Techniques and Stitches.
This tutorial on How to Sew A Round Hem is really handy as it shows you how to get a professional look. Follow the link for the tutorial; http://www.onthecuttingfloor.com/how-to-sew-a-round-hem/
If you would like to learn or brush up on other basic sewing skills and techniques go here; Sewing Techniques & Stitches to find the skill you would like to work on.
If you would like to see easy/ beginner sewing projects go here; Easy/Beginner Projects
If you would like to see challenging/Experienced projects sewing go here; Challenging/Experienced Projects