Quick tip: When hand drawing crochet symbol diagrams, do not squish one stitch per square on graph paper. Instead, use the height as your guide. If you were drawing out all single crochet, which are short, you could just make them one block tall. For half double crochet, if you chain two then make your rows two blocks tall. For double crochet, shown above, allow your stitches to be three blocks tall. It's more proportional to the actual project and it's easier to read.