Haven’t you heard? Coloring books aren’t just for kids anymore. You’ve probably seen a growing number of adult coloring books in the stores lately and if you haven’t caught onto this trend yourself it might seem a little strange. But coloring has actually been proven to relieve stress. It’s a great activity for busy adults who need a moment to breathe. Coloring Book Day gives you an excuse to spend as much time as you want on the relaxing activity. You can celebrate by buying a coloring book and enjoying it on your own, or you can throw a coloring party and invite a bunch of friends over to enjoy it with you!