The "Invisible Sewing Technique" video can be found here
One example using invisible sewing. One of my blankets, click here
Crocheted blankets are one of my favorite item to make. There are times when I don't want the sewing to show when finishing them. I don't make any of my blankets in 1 piece. It gets to heavy having to flip the blanket over at the end of every row. Instead I make "columns" then I sew them side by side using this sewing technique. It also allows you to change colors if needed.
Check out the video for full instructions.
For my Crochet playlist you can go here. They include many stitch patterns, scarfs etc.....
Go to my facebook page Crochet Den and click on Like
Let me know if you have any questions!