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 Preschool Made Easy
by marinella marifu6a
by Sheruknittingcom
by naztazia
by ABC TV
by Paracord 101
by Zoes Fancy Cakes