The Life-Giving Sword, written by Yagyu Munenori, is a classic text on the art of swordsmanship and the philosophy of the samurai. Yagyu Munenori was a renowned swordsman and strategist who served as a martial arts instructor to the Tokugawa shogunate. In this book, he shares his insights on combat, strategy, and the cultivation of a warrior's spirit. The Life-Giving Sword offers a profound exploration of the samurai code and the principles that guided their actions during the Japanese feudal era.