Takes readers back to an aspect of their childhood long forgotten in most English-speaking countries - the pleasure of filling in the lines with precision, the fun of choosing the colours to use, the decisions about whether a pen, pencil, marker, or crayon would be better to work with, the day dreaming about the people outlined in the picture, and lots more. All of this remains vitally important in Japan - where a museum has been established to understand and preserve the best examples of picture colouring.