@ The Patchwork Heart: Joining Squares Method 3 - Continuous join as you go tutorial
Hate the bump on seams? The flat slip stitch join helps minimize it.
12 Ways to Join Granny Squares - Baking Outside the Box Mais
How to join Granny Squares with an invisible seam. But more importantly, chunky yarn granny squares!
Flat Slip Stitch Join For Granny Squares. Free crochet tutorial for seaming granny stitch squares.
Join Crochet Motifs with One Seam from Crochet is the Way - Learn this seamless joining technique for your square or rectangular projects . Get the link for this pattern and more at Hookin' on Hump Day.