Gasen (畵筌) is a Japanese instructional manual for those learning to draw or paint. This Gasen, a six volume set, was published in 1721, and was created by Hayashi Moriatsu (林守篤). It is considered to be the first of comprehensive, full-scale art manual in Japan.
Hayashi Moriatsu was trained in the Kanou school, which was quick to draw upon Chinese painting manuals. He introduced them as part of the Kanou school’s body of knowledge. The book is designed for beginners, including painting theory and guides on pigments with clear, and accessible illustrations. (Summarized and translated from: 小林宏光Kobayashi, H. (2018). 近世画譜と中国絵画 : 十八世紀の日中美術交流発展史: Kinsei gafu to Chūgoku kaiga : jūhasseiki no Nitchū bijutsu kōryū hattenshi)
The preface is devoted to Chinese painting theories such as the Six Laws, Three Classes, and Twelve Things to Avoid. Volume 1 includes orally taught secrets by Yuugen Ogata, who was Moriatsu’s master teacher. The next four volumes focus on Kanou School painting methods: vol. 2, instructions on how to draw landscapes and plants; vol. 3, birds and animals; vol. 4, Chinese figures; vol. 5, Japanese figures; and vol. 6, methods of mounting and appreciating painting, and how to roll and unroll scrolls. (Summarized from JAANUS: Japanese Art and Architecture Net Users System)
The images shown here in this post are from Gasen (畵筌) by Hayashi Moriatsu, volume 2 (how to draw landscapes and plants), including how to draw different types of movement in water and flowers in the summer.







