In the last year, you might have noticed something peculiar: adults carrying a pack of colored pencils, a portable pencil sharpener, and a coloring book. But not just any coloring book. Preferably a coloring book "for adults" such as the common Mandala coloring books and the Secret Garden series. I had seen my roommate enjoying this phenomenon and became so intrigued that I asked for a coloring book for Christmas.

Last year. When I was 20, i.e., an adult.

So why is the coloring book craze taking off and doing so well?

Just a fad or actually helpful?

In 2015, almost 12 million adult coloring books were sold nationwide, according to Nielsen Bookscan. These coloring books began as a method of "mindfulness," a popularized idea of meditation, focused thinking, and thoughtful living. Mindfulness takes a moment and gives every breath, sight, smell, etc. meaning and peace. Because of this mindfulness connection, coloring books have given those who suffer from chronic stress, anxiety, panic attacks, depression, etc. an outlet to channel any unwanted or confusing thoughts and feelings.

According to The Washington Post, this phenomenon has acted "as a tool against self-harming or as a way to manage the effects of physical illness or fend off depression and other difficulties."

Nostalgia and stress relief

Coloring is no longer just for kids, and many would argue that the activity was never solely juvenile either. Creativity, art, music, etc., things that children do for fun have been thought to not be permissible for adults unless they are masters. This is not true, though! Creativity is applauded and rewarded when we are young, but as we grow older, if you aren't "good" at it, then the phrase, "Get back to work," frequents one's vocabulary.

The coloring book craze opens the door for adults to delve into creativity free of "perfectionism" often stamped onto "grown-up art."

I asked several Facebook users what they thought about the coloring book craze. Several cited the activity as relaxing, stress-relieving, nostalgic, and comforting:

Refuse to put down your crayons.

"Artists are just children who refuse to put down their crayons. -- Al Hirschfeld"

Don't be afraid to pick up one of these coloring books today for yourself, a friend, your parent, or teacher because this coloring craze isn't just another silly phenomenon. It's a way to express yourself, relieve some stress, and battle with your inner demons in a creative way.