学校家庭図画描き方の基本と其の画集
A 1928 Japanese school drawing manual by Okada Saburōsuke and Niwa Reisuke, published by Chūbunkan Shoten, meant for students learning how to draw. Its pictures are simple line sketches of birds, feathers, shells and a bird perched on a branch, each built from dashed construction lines and triangles that show how to block out a form before drawing it. A designer might take from them the method of reducing a subject to basic geometric guides before rendering its outline.
