It introduces the biographies of some eminent monks who shone the history of Korean Buddhism with their life and thought. It selects 106 monks’ biographies from: (1) Haedong goseung jeon 海東高僧傳 (Biographies of Eminent Monks of Haedong) in 1215 during late Goryeo by Gakhun 覺訓, (2) Dongsa yeoljeon 東師列傳 (Biographies of Eastern Masters) in 1894 by Beomhae Gagan 梵海覺岸 (1820–1896), which collects the biographies of monks from early history of Korea to the nineteenth century, (3) Jogye goseung jeon 曹溪高僧傳 (Biographies of Eminent Monks of Jogye) by Geummyeong Bojeong 錦溟寶鼎 (1861–1930) in 1930. This book helps people read the life and thought of these monks who created the tradition of 1,700 years of history of Korean Buddhism, as well as the historical situation and spirit of their time. (1) Haedong goseung jeon is the biographies of eminent monks from the time of Buddhism’s introduction to the thirteenth century that the Hwaeom monk Gakhun recorded. Only two volumes of the text that correspond to the period of the Three Kingdoms survive now. This book selects the biographies of twenty-eight monks, including those who traveled to China and India to seek Buddhist scriptures. (2) Dongsa yeoljeon is the collection of the biographies of 198 eminent monks from the period of the Three Kingdoms to late Joseon that Beomhae Gagan of Daeheungsa Monastery, Haenam, Jeollanam-do, compiled. This book selects forty-eight of them, focusing on the successors of the Taego 太古 dharma lineage and the Pyeonyang branch of late Joseon. (3) Jogye goseung jeon records the biographies of ninety-seven monks after Bojo Jinul, thirty among of whom this book selects, focusing on the Buhyu lineage monks with Songgwangsa as their head monastery in late Joseon.