This correspondence course on web developed by Daniel Moreau, a painter as well as a researcher on Goethe’s scientific works, intends to train those who would like to be a master of colors. The aim of this course is to learn the essence of colors through the direct experiences of them. It includes painting exercises with given relevant themes and related color meditations, which will be delivered two themes a month. Supportive instructions will be given by E-mail. A relevant workshop will be offered by requests. (Each course from level 1 to 3 takes 6 months to finish.)