After having a minor Stroke my Physical Therapist suggested coloring as an additional therapy to get better movement in my right hand and shoulder. I began with just crayons and colored pencils. Now I am using Watercolors and Acrylics, can sit for several hours doing this and LOVE every minute of it. (Sometimes I listen to books on tape while doing this). I am happy to report I have completed my three months of physical therapy, still enjoying my Adult Coloring Books and now have complete movement in my hand and shoulder. They are educational as well as fun. (My therapist told me this was also good for lowering ones Blood Pressure, Stress, helps those with Alzheimers as well as many other things. This is considered Art Therapy). I would highly recommend these books!