Coloring books have been around for ages. However, the idea of adults doing them to relieve stress is fairly new. These days, it’s more or less apropos to kids and adults alike to crack open a ...

If you purchase an independently reviewed product or service through a link on our website, Rolling Stone may receive an affiliate commission. Grammy-Award winning EDM artist Marshmello once sang ...

Those of us who grew up coloring remember the cardinal rule: stay inside the lines. But those who pick up the Patterns of the Universe coloring book have to stay in the sines (and cosines and tangents ...