Jikji () is the abbreviated title of a Korean Buddhist document whose title can be translated to "Anthology of Great Buddhist Priests' Zen Teachings". Jikji Simche means, "If you look at a person's heart correctly through the Zen meditation, you will realize that the nature of the heart is the heart of Buddha.". Printed during the Goryeo Dynasty in 1377, it is the world's oldest extant book printed with movable metal type. UNESCO confirmed Jikji as the world's oldest metalloid type in September 2001 and includes it in the Memory of the World Programme. Jikji was published in Heungdeok Temple in 1377, 78 years prior to Johannes Gutenberg's acclaimed "42-Line Bible" printed during the years 1452–1455. The greater part of the Jikji is now lost, and today only the last volume survives, and is kept at the Manuscrits Orientaux division of the National Library of France (BnF). The BnF has hosted a digital copy online. Authorship Jikji was written by the Buddhist monk Baegun (1298–1374, Buddhist name Gyeonghan). In May of 1351, Baegun sought the teachings of Chinese Buddhist Master Seok-ok. After receiving the first folume of Bulgyeongjisimcheyojeol from Seok-ok, he began practicing Buddhist teachings. Baegun was also taught by the Indian high priest Jigonghwasang. He later served as the chief priest of Anguksa and Shingwangsa temples in Haeju, Hwanghae Province, and was published in two volumes in Seongbulsan in 1372. Baegun wrote and edited Jikji at Chwiamsa Temple in Yeoju in 1374, where he lived until death. Contents The Jikji comprises a collection of excerpts from the of the most revered Buddhist monks throughout successive generations. Baegun compiled it as a guide for students of Buddhism, then Korea's national religion under the Goryeo Dynasty (918–1392). The text propounds on the essentials of Seon, the predecessor to Japan's Zen Buddhism. The Jikji consists of two volumes. The metal-print Jikji that was published in Heungdeok Temple is kept in the Manuscrits Orientaux division of the National Library of France, with the first page of the last volume (Book 1 in Chapter 38) torn off. A wood-carving print of Jikji published in Chwiamsa Temple contains the complete two volumes. This is kept in the National Library of Korea and Jangsagak and Bulgap temples as well as in the Academy of Korean Studies. Printing On the last page of Jikji is recorded details of its publication, indicating that it was published in the