So I just started one of these coloring books a few days ago. I had heard of them before, and I was walking around WallyMart and saw them. There was 5 or 6 different ones. I picked the Mandala one. I love it. I've been going through some major changes at work and home, so my anxiety has been high sometimes. I am able to stop thinking, and just focus on coloring and planning out my colors as I go. It's been helpful for me, thus far at least.