Available with crayons: Most of the books come with crayons; this means that you dont have to buy them separately. If you dont know how to use wax crayons, by buying such a thing, you can always learn something new in life and relieve all the tensions that you have in your mind. You can design and color whatever you want to: While some of the books have limited designs, there are others that let you design something on your own as well. If you are more of a creative and artistic person, you might want a book that lets you be independent enough, in terms of designs.
Coloring in a Doodle Book. You can do this very effectively by getting an artists sketch pad. This is a pad of blank sheets of paper used by artists to plan their paintings or creative work on, much like a writers rough draft. Once you have your pad, take a pencil and start to doodle. Make lines, circles, shapes, what ever at the time makes you feel good. Then color in the spaces within the doodles. Even if you think you are not a very creative person you will feel productive and relaxed after a few doodle your noodle calming sessions.