A Chinese tea classic. Written by Lu Yu, who is considered the founder of tea. Lu Yu was a man who lived around the time of Xuanzong (reigned 712-155) of the Tang Dynasty. It is in three volumes. The first part is the source of tea, the tools of tea, and the way of tea. The middle volume is “Tea utensils. The lower part is divided into ten chapters: “Tea Boiling,” “Tea Drinking,” “Tea Departure,” “Tea Briefs,” and “Tea Diagrams. The tea ceremony that flourished in the Tang Dynasty was dancha, and the tea ceremony of Lu Yu is described in detail, including the three methods of making, boiling, and drinking tea and their utensils, and its philosophy is expressed in the sentences “Tea is not good for the thrifty but for the broad” and “Tea is good for people of virtue and virtue is good. In Japan, the Chakyo (Tea Sutra) was published in the early Edo period (1603-1868), and in 1774 (An’ei 3), a detailed explanation of the Chakyo was written in katakana by Zen master Daiden of Shokokuji Temple in Kyoto. It is included in the first volume of the “Complete Collection of Tea Ceremony Classics” (Chado zenshu).