|Standing single crochet stitch
I like to start each row of my mosaic projects with a standing single crochet stitch rather than attaching with a slip stitch, chain 1, and then single crochet. To me it's simpler and creates less bulk within the double border. You can use this on other projects as well. It's a good stitch to use when you don't want it to be obvious where your row/round starts. But I've had a few questions about the standing single crochet stitch lately, so I decided to make a quick photo tutorial.
Start by making a slip knot on your hook.
Insert your hook into the space where you want to make your standing single crochet stitch. In this example, it's the border single crochet so you'll insert your hook through both loops of the single crochet stitch at the edge of the previous row.
Yarn over and pull up a loop.
Yarn over and pull through both loops on the hook to complete the stitch.