Learn how to join a horizontal and vertical seam flawlessly with this tutorial by Julie. While it's quite simple (essentially a hybrid of the Blind Stitch/Mattress Stitch with a vertical to vertical/horizontal to horizontal seam) using the two stitches in one seam can be a little discombobulating, so this video will help orient you. You may be wondering, when would I need to implement this? For a handful of our Cocoknits Method patterns there's a collar where you'll need to join a vertica...