Gabe Coeli of Portland, Ore., is devotee of zen meditation. But in the middle of a busy work day, he often takes a shortcut to mindfulness and stress relief by doing a little coloring. His assistant ...

So what's up with the crayons? Everywhere you go lately — the bookstore, Starbucks — even here at NPR — I see grown men and women sitting around coloring. Every time, this takes me back to rainy ...