During the period of Japanese domination, Kim Songsu emerged as one of Korea's leading cultural nationalists. This life history details his contribution to the self-strengthening programs moderate nationalists advocated as the foundation for Korea's independence. This book delineates the drive for Korean modernization by cultural nationalists during the colonial era in the early twentieth century. The cultural nationalism movement, led by moderate nationalists, eschewed overt resistance to Japanese imperialism and advocated self-strengthening programs to lay the foundation for future Korean independence. To describe this movement, this book focuses on Kim Songsu and his various projects for Korean modernization. The author provides a narrative that includes encapsulated stories and sheds light on the Japanese colonial policies concerning Korea. A Korean Nationalist Entrepreneur examines Kim's projects in chronological order, reflecting historian Carter J. Erkert's statement that Kim's life history has been so closely intertwined with some of the deepest currents of modern Korean history itself. The book describes how Kim took over and developed a post-elementary school, founded Korea's first modern textile firm, established one of Korea's major newspapers, and established Posong Junior College (which later became Koryo University). In 1946, after Korea's liberation from Japan, Kim became a pivotal figure in the conservative Korean Democratic Party, which became the main opposition party in Korea in the 1950s. He eventually became vice president in 1951 under Syngman Rhee.