I first got into the craze during my inpatient stay in hospital, we had the colouring crew (very cool) and we'd pass the days and evenings by colouring. On nights where my insomnia was bad I'd colour until I fell asleep.
I currently work from 4 books; Harry Potter, The secret garden, animal kingdom and animorphhia.
I like to use Marco Raffine pencils but have been experimenting with Fabre Castell Pitt Pens.
Here's a couple of my completed pieces.
I've found colouring helps me to be mindful to not focus on things that are causing me stress or distress and brings me to a calm place. You don't even need to spend a fortune toget started. I paid £2.50 for Animorphia on Amazon, and £17.99 for a pack of 72 pencils which may seem extreme but they were recommended and I recommend them too, they have lasted a lot of colouring hours and have lots of life left in them and the sharpen beautifully and don't break easily.