According to Wikipedia: A coloring book (or colouring book) is a type of book containing line art for a reader to add color using crayons, colored pencils, marker pens, paint or other artistic media. Coloring books are generally used by children, though coloring books for adults are also available. They cover a wide range of subjects, from simple stories for children to intricate or abstract designs for adults. The golden age of coloring books is considered to be the 1960s.
Every child of any culture has figured out that coloring is such a wonderful activity that they can engage in. However, since the arrival of wonderful technologies like computers, internet as well as printers, parents and even kids have gained the access of printable coloring pages. At any point in time, your child can look for any free coloring page just to keep themselves well-entertained.
The awesome part is that anyone can do it will no skill set required! Grab a crayon and you are good to go. You can make it even more enjoyable and have your kids or grandkids color with you. Depending on the age of the young ones they may be interested in the adult coloring books, others still wanting to color a cow, astronaut, or pretty flower arrangement.