Multiple uses: eases the anxiety of anything that is stressful, tedious, and/or time-consuming waiting. Exercises the brain, relaxing for sleep, improves handwriting and control of non-dominant hand. It's non-alcoholic, non-addictive, and non-self-destructive. Opposite from mainstream coloring books, this one offers Pencil-In markings in full-color line art created by the artist/author. This volume is for exploring more of the dark side of your emotions.