Colouring books have been around for centuries, but in recent years, there has been a surge in popularity of adult colouring books. Many people find that colouring is a relaxing activity that helps them to destress and unwind after a long day.

There are a number of reasons why adult colouring books are becoming so popular. One reason is that they provide a creative outlet for adults who may not have another outlet for their creativity. Additionally, colouring can be a meditative activity that helps to calm and focus the mind.