This is the second book following [Friendly Drawing]. It is not a coloring method that considers the color scheme for unconditionally beautiful coloring, but a coloring method that understands the light and material. Through a coloring method that considers the light and contrast, shadow and brightness, material and map of each material such as skin, hair, and wrinkles on clothes (especially the cell-type watercolor oil-based glazing method) Improve your understanding of coloring.