Adult coloring books is the hottest new segment in publishing and for the most part, sales are so robust that they are outselling novels. The main problem with this genre is that they are primarily ...

PHILADELPHIA (CBS) -- If you like to be creative, but don't consider yourself an artist there's a hobby that might be just right for you. Adult coloring has become extremely popular in recent months.

Adult coloring books are made all the more fun when you have the right coloring tools to use with them. While crayons and colored pencils definitely have their place, the best markers for adult ...