A french seam is a useful skill to know for people who sew. A French is useful when you do not want your seams to have raw edges on the inside, such as when you’re making clothing or bags. It gives a nice finished edge. Just make sure to have an iron ready to press your seams.
1. Lay your two pieces of fabric out.
2. Lay the 2 pieces wrong sides together.
3. Stitch a 1/4″ seam
4. Trim extra down to 1/8″
5. Fold back upon itself, over the seam, right sides together
6. Sew another 1/4″ seam, covering the previous seam inside the pocket
7. Press flap to one side. You could even do a top stitch to stitch the flap down.
To learn more about general sewing, such as notions, fabric types, machine tools, and more, check out this book
The Sewing Book: An Encyclopedic Resource of Step by Step Techniques
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I just happen to get to your blog and this item makes me smile! In France we call this kind of sewing ‘couture anglaise’ (English seam). Hahaha. You have a very nice blog.