Grammy-Award winning EDM artist Marshmello once sang about “Chasing Colors,” and while he probably wasn’t referring to adult coloring books (the lyrics say otherwise), we like to imagine him ...

Adult coloring books have been consistently popular since 2013 when Johanna Basford’s elegant, calming Secret Garden started the trend. Since Secret Garden was released, there have been a ...

Mental Floss may receive a commission for purchases made through these links. Coloring books marketed toward adults became big business back in 2015, and five years later, the trend continues.

Adult coloring books have been becoming more and more popular in recent years. It's a fun and relaxing hobby that allows you to turn a simple lined image into a beautiful masterpiece. You get to ...