Adult coloring books are, really basically, coloring in books for grown ups. Like children's coloring books, they are full of outline illustrations designed to be packed in with colored pencils, markers, crayons, or whatever additional media you wish to apply.
What's in an adult coloring in book?
The major difference between adults' and kids' color books is that the grown up versions usually feature less juvenile images and designs. Instead of superheroes, barnyard creatures, and television characters, adult coloring in books are more often made up of:
Why is it good?
The growth in recognition of the books reportedly has much to do with adult relaxation and also stress and anxiety release. Many adults who use the books report that they discover the repetitive, low-stress nature of coloring in to be soothing, relaxing, and a way of de-stressing away from the stresses of living and work.
Among the other benefits of adult coloring in books, they also claim to enjoy recapturing the ostalgia of childhood by engaging in an action usually reserved for children. It takes people back to a simpler time, and can also be a way for parents to connect and bond with their children by sitting to color in with them. Obviously, many parents have been happily coloring in kids' books for years, but these days they have choices that are not limited to Dora the Explorer or SpongeBob Square Pants.
Why do we need it?
Adult coloring books clearly help serve many purposes that are beneficial. They can be so much more than the color by number that people might be thinking they are. They can be focused, therapeutic, relaxing, calming, problem solving, and organizational. As you can see, they are highly effective for many reasons, and the ideas behind them have stood the test of time, even if they feel like they are only the latest fad
In summary, coloring for adults appears to be a growing past-time that allows adults to relax and unplug from the stress in their lives, by engaging in a hands-on activity that involves minimal commitment and maximum nostalgia.