Coloring has always been children's favorite hobby. Many psychologists believe that the coloring can develop knowledge, improve motor skills and creativity at an early age.

It is believed that the company The McLoughlin Brothers (en.wikipedia.org/wiki/McLoughlin_Brothers) invented the coloring books. They published a book called The Little Folks' Painting Book in collaboration with Kate Greenaway in 1880.

Possum Colouring Pages