– Backpost Crochet (BP) –
Backpost Crochet can be any of the basic stitches such as Single Crochet or Double Crochet – for these two the abbreviations will be BPSC and BPDC. You can also work the stitch in a Treble Crochet, however as this is a loose stitch, it does not give the desired effect in my opinion.
What is significant about backpost crochet stitches, is that instead of working in the “V” of a stitch, you work around the stem of this.
In this example I am working a Backpost Double Crochet (BPDC).

Instructions
Backpost Single Crochet (BPSC):
Insert your hook on the right side of the stem and move around and out on the left side. Wrap your yarn around your hook and lead it back through, leaving you with two loops on your hook.
Finish the stitch as you would a regular stitch. In this case wrap yarn around hook and push through both loops.


Backpost Double Crochet (BPDC):
Wrap your yarn around your hook and work your hook from the backside towards you. Insert it on the right side of the stem and move around and out on the left side. Wrap your yarn around your hook and lead it back through, leaving you with three loops on your hook.
Finish the stitch as you would a regular stitch. In this case wrap yarn around hook and push through two loops. Wrap once more and push through the remaining two loops.
DEC2 Backpost Double Crochet (DEC2 BPDC):

Begin by wrapping your yarn around your hook once.

Insert your hook from the backside going from right to left around the stem of the stitch.

Wrap your yarn around the hook and lead it back through. You now have three loops on your hook.

Wrap your yarn around your hook and pull through two loops.

Wrap your yarn around your hook and insert it from the backside going from right to left around the stem of the next stitch.

Wrap your yarn around your hook and lead it back through. You now have four loops on your hook.

Wrap your yarn around your hook and oull through two loops. You now have three loops remaning on your hook.

Wrap your yarn around your hook and pull through the remaning two loops closing the stitch.