Add Yahoo as a preferred source to see more of our stories on Google. Think coloring is for kindergarteners? Think again! Well, it totally is, but it's also for grown-ups in need of stress relief.

All images courtesy of Two Kids and a Coupon Do you love to color? Coloring is a popular and affordable hobby and it can be ...

When Amanda Rulton picked up a cheap coloring book and some felt-tip pens, she didn’t expect the activity to stick. It came when she was in the middle of a health crisis. Eighteen months ago, she had ...

All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission. Coloring apps — which let ...