Adult coloring books provide a pleasing, soothing, and creative activity for men and women of any stage in adulthood. They are very portable and can be used while sitting and lounging indoors or outdoors. They can be shared and enjoyed with other adults, or simply savored individually. There are a wide variety of quality choices with various themes and focuses. Adults can choose from humorous and witty adult themed images, stained glass window designs, pretty patterns, or nature inspired themes.