In crochet Post Stitches are all about where you put your hook. It really can be that simple, yet it can be intimidating. It is from post stitches that interesting textures and designs can be created. But first it helps to understand the basics.
To work a Front Post Stitch, the hook is inserted between the “body” of a stitch, from the front of the fabric to the back, then returned back to the front of the fabric. Causing a post (or “body”) of a stitch to be pushed forward. In all the examples I show here I am demonstrating with Double Crochet stitches (US Standard), but really any stitches can be utilized in this manner. Then the indicated stitch is completed as normal.
As for a Front Post Double Crochet -FPDC, (US Standard), you would yarn over first, insert the hook as indicated above, yarn over and pull through a loop to anchor the stitch, then yarn over pull through 2 loops, and repeat the yarn over pull through of the last 2 loops on the hook.
To work a Back Post Stitch the process is very similar, it is just placing the hook in the reverse order, pushing the post (or “body”) of the stitch toward the back of the fabric. Essentially inserting the hook between the “body” of the stitch, from the back of the fabric to the front, then returning the hook to the back of the fabric. Once again you complete the stitch as indicated.
When working a Back Post Double Crochet -BPDC, (US Standard), you would yarn over first, insert the hook around the post of the stitch from back to front, then front to back as described above, yarn over and pull through a loop to anchor the stitch, then yarn over and pull through 2 loops two times.
Knowing these stitch positions opens up many different stitch texture opportunities, such as basket-weave and cables, I have displayed here a simple basket-weave of alternating front and back posts, as well as working a front and back post stitch around the same stitch. Working around the same stitch you will have to skip a stitch between or work the stitches over a mesh base. Using the same stitches, and in this case even in the same order (alternating front and back post stitches), you can get very different effects. Try this stitch placement out for your self.