This is how I attach my Granny Squares when I am making a afghan. It is very easy to do and is only a single crochet stitch. I also make 2 rows of single crochet for the border of a granny square afghan. Enjoy and thanks for watching!
by Classic Beader
by WoolyWondersCrochet
by Macrame Anna Cucè
by Garnstudio DROPS Design
by christine white
by BAG-O-DAY CROCHET & MORE
by enjoy paper! origami tutorials