There are about a zillion possible ways you could use this free printable heart chart. I designed it for crocheting, but it could be adapted for other crafts too.
Ideas for Crocheting the Heart:
Note that there are many possible ways you could approach the crochet work here. I've suggested one way of doing it, but there are quite a few other ways that would work. If you'd rather work the pattern sideways, or upside down, or from the bottom up, you could do so. The results would vary. Please feel free to experiment if you are so inclined.
Note to Knitters: This chart isn't intended for knitting. Knit stitches aren't square, so if you knit the chart as-is, your heart would turn out looking "squished." To remedy that, you'd need to remember to repeat every third row in the chart (or possibly every fourth row, depending on your gauge - it's not an exact science).
For that matter, crochet stitches aren't always perfectly square either. In this case, they are close enough that the chart works fine. If you compare my crocheted heart against the chart, you'll see that there is a bit of a difference.