Terayama Katsujo (Terayama Tanchu) てらやま　かつじょう The third photo is of the book, which the author signed when I purchased it. I have a memo with the meaning. The name is hidden. The following is quoted: Terayama Katsujo Reading: terayama katsujo Calligrapher. Born in Saitama Prefecture. His pen name is Tanchu. He studied Zen and Jikishinkage-ryu swordsmanship under Omori Sogen, the art of calligraphy Zen under Yokoyama Tenkei, and Kansho-do under Yamada Kensai. He traveled around the world, promoting kendo, Zen, and calligraphy. He was a professor at Nishogakusha University. He also taught at Sophia University and Hanazono University. His main works include "Tesshu and Calligraphy," "Appreciating Calligraphy," and "Ikkyu's Ink Traces." He passed away in 2007 at the age of 71. Stored at home. There is age-related deterioration, and the cover is damaged. I did not find any stains or writing in the book. There may be oversights. I hope that those who understand that this is a used book will find it useful.