This is an explanatory book about the single-line calligraphy scrolls displayed in the alcove of a tea room. When invited to a tea ceremony, you will have the opportunity to view these hanging scrolls. The host may read the calligraphy and explain it, but it can be difficult to understand what is written, and you may often leave without fully grasping the meaning. This book contains 269 Zen phrases and is very helpful in such situations. The spread and table of contents pages are aged, but the inside is clean with no stains or writing. The purchase price was 1500 yen. I will sell it to anyone interested in single-line calligraphy.