The Lone Samurai, written by William Scott Wilson, is a biography of the legendary swordsman Miyamoto Musashi. The book delves into Musashi's life, his duels, and his philosophy on martial arts and personal growth. It provides historical context and explores the cultural and social aspects of the Japanese feudal era. The Lone Samurai offers a comprehensive and engaging account of Musashi's life, making it a must-read for anyone interested in the samurai and their impact on Japanese history.