OPTIMUM MIND
@luckymax - Author
OPTIMUM's books
Live on Discovery
DINOSAUR COLORING BOOK FOR KIDS AGE 4-8
I bought my first coloring book when my son was only 3 years old. I was pleasantly surprised to see him so "kidnapped" intent on filling the spaces, drawing after drawing. They were simple designs, but over time he wanted more and more complex ones. Children's colouring books are not just a si...