There are so many coloring books for adults online, but we've rounded up 30 of our favorites. There are some beautiful (and interesting) choices here, so you're sure to find something you'll like!

A little tweeting birdie pointed me to the website of one Carlton Hibbert, a U.K.-based illustrator and designer. Carlton has taken to posting intricate patterned images for download and coloring ...

Patterns of the Universe, out tomorrow, contains 65 different coloring options that let you illustrate everything from fractals to octahedrons.

According to a new study, coloring books are more effective at reducing anxiety than reading for a similar amount of time.