Back Post Double Crochet & Front Post Double Crochet
Back Post Double Crochet (BPdc)
Yarn over, insert hook from back to front to back
around post of corresponding stitch below, yarn
over and pull up loop [yarn over, draw through two
loops on hook] twice.
Front Post Double Crochet (FPdc)
Yarn over, insert hook from front to back to
front around the post of the corresponding stitch
below, yarn over and pull up a loop [yarn over,
draw through two loops on hook] twice.