WASHINGTON — The amateur artists can be found coloring in airport lounges, doctor’s office waiting rooms and while they watch TV shows at home. They are forming coloring meetup groups at libraries and ...

A few years ago, Scottish illustrator Johanna Basford made her living creating complex black-and-white drawings for brands like Nike and Absolut Vodka. Her clients would joke about wanting to color ...

Sitting near the end of a table with a coloring sheet in front of her, Lauri Neumann-Grable used her left hand to steady the paper and her right to fill in its small flower patterns with a light-blue ...