Basic Stitches
Single Crochet – this is the first of the basic stitches. It is the shortest stitch and results in a firm, flat product. To make a single crochet, make sure the front side of the chain is facing you, then insert the hook through a chain, yarn over, pull the loop through the chain, yarn over again, and pull through both loops on the hook.
Double Crochet – as in single crochet, pass the hook from the front to the back of the work through the upper loop of a stitch of the previous row. The thread is caught on the hook and drawn through this loop.
Half-Double Crochet – a cross between a single crochet and a double crochet stitch. Begin with a yarn over, insert the hook into a stitch, yarn over and pull through the stitch; do another yarn over and pull through the three loops on your hook.
Triple Crochet – the last of the basic stitches and also the tallest. To make a triple crochet, yarn over the hook twice; insert the hook into the stitch, yarn over again and pull through the first of two loops (the two closest to the end point); yarn over again and pull through the next two loops. Yarn over one last time and pull through the remaining two loops.