Press the two 14" x 14" back pillow cover pieces.
Choose an edge on each piece to be the center back of the pillow. The grain of the fabric pieces should run the same way for front and back.
Press a double 1/4" hem onto each of these center edges, to the back of fabric.
Stitch the hems.
Place pillow front piece on work surface, right side up.
Place pillow backs on top of front piece, right side down. Hem sides should overlap each other about 6".
Clamp (pin) all around the outside edges, and sew together with a straight 5/8" seam.
Snip the corners on an angle, then turn pillow cover.
Slip the pillow form inside the pillow cover through the overlapped back edges.
Smooth, fluff, and decorate!