Bought to occupy the winter holidays a little girl of 6 years, and applied carefully, especially magnet drawing and painting. He had to help to make the mixtures of colors (though she understood very well how to interpret the color schemes included with the box). The ink application is very simple, it is distributed well in the boxes and color gradients are a breeze to make. After showing her how she managed cutest fades and color gradients. A book, however, to calm children with fine motor skills, or otherwise, for older children. I recommend 100%, even for adults, because even Mom took great pleasure in manipulating inks and see the fairies come to life little by little ...