As a kid, you might have picked up a coloring book on a rainy day or when your parents needed you to occupy yourself quietly. As an adult, maybe you still enjoy coloring or doodling when you need to ...

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 ...