The half double crochet (HDC) stitch is generally considered an easy stitch to learn, as it involves fewer steps than some other crochet stitches. It is a good choice for beginners who are just learning how to crochet, as it is, in my opinion, a little easier to work than a double crochet (DC) stitch.
The half double crochet (HDC) is a crochet stitch that is shorter than a double crochet (DC) stitch and taller than a single crochet (SC) stitch. To work a half double crochet, you will start by yarn over (YO) and inserting your hook into the designated stitch. Then, YO again and pull up a loop. You will have three loops on your hook. YO again and draw the yarn through all three loops on the hook to complete the stitch. (Olga, (n.d.) 2019)
I use this stitch to make everything from scarves, clothing, blankets. It’s really quite versatile!
If you need to view a video, here is a great one that is sure to help you learn this simple, easy stitch.
References:
O. (n.d.). How to Half Double Crochet (hdc). My Crochet Space. https://mycrochetspace.com/half-double-crochet/
Yarnspirations (2016, May 24). Crochet: Half Double Crochet. YouTube. https://www.youtube.com/watch?v=z1rZQyUqjBk