When I was a child, coloring was one of my favorite activities. I would pick up a coloring pencil, test it out on scrap paper, and away I went. Periodically, I would put down my pencil, assess my work ...

When Amanda Rulton picked up a cheap coloring book and some felt-tip pens, she didn’t expect the activity to stick. It came when she was in the middle of a health crisis. Eighteen months ago, she had ...

Johanna Basford's intricate hand-drawn coloring books for adults have sold nearly 1.5 million copies worldwide. Courtesy of Johanna Basford/Laurence King Adulthood seems to be having a regressive ...