Quick! Adult coloring is a) an obscure fad for quirky types, or b) the craze responsible for three of the top ten best-selling books on Amazon right now.
It's b). Grown-up books that you color with crayons are suddenly such a hit combo that there’s a waiting list for the most popular ones--namely, those by British artist Johanna Basford. (Don't worry: There are plenty of copycats on Amazon and Etsy available for purchase this very second.)
But it’s not just a twee affectation. Studies show it can also help with stress, work performance and insomnia. Want to know what all the fuss is about? Click here to see five grown-up coloring books you'll want to add to your wish list, stat!