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 ...

11:30, Mon, Mar 21, 2016 Updated: 14:05, Mon, Mar 21, 2016 What is adult colouring in? Children have always loved colouring books, but an increasing number of grown-ups have also started to pick up ...