Adult coloring books are made all the more fun when you have the right coloring tools to use with them. While crayons and colored pencils definitely have their place, the best markers for adult ...

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 ...

As of this writing, five of the top 30 titles on Amazon’s best-seller list are adult coloring books. With over 2000 titles out there and rising, the phenomenon of adult coloring-within-the-lines just ...