An elderly friend of mine uses both colored pencils and fine tip markers. . Her vision has improved-she is more focused when doing other tasks. She has anxiety attacks and the Doctor has decreased her dosage to half of what she was taking and she is enjoying going out to restaurants and WalMart. She rediscovered her love of coloring with her great great GS. And the benefits are miraculous. She's a lot happier than she's been in years. My son says the only reason I took up quilting is so I don't look silly coloring quilt patterns-little does he know I have stacks of coloring books of my own. : )