More pillows! This post is the 3rd and last in a three post series about how to sew a pillow. In the first post, I covered sewing a basic non-removeable knife edge pillow cover. Next, I dived into envelop closures – a simple way to make a removeable cover. In this last post, I am covering how to sew a pillow with a zipper hidden in a seam. This is now my favorite way to make a pillow cover. I love how basting the seam and hiding the zipper under it turns out great every time. Definitely the easiest way to install a zipper, in my opinion….