帝国毛筆新画帖教授法
A 1902 Japanese teaching manual from Sanseido, written by painters Kawabata Gyokusho and Kakiyama Shigeo, for students learning brush drawing. Its pictures are simple line diagrams: a leaf with branching veins, a triangle subdivided into smaller triangles, and a ring with arrows showing stroke direction. A designer could draw on their clean, stepwise construction of forms from basic geometry.
