Jikji (Korean: 직지심체요절) is the abbreviated title of a Korean Buddhist document whose title translates as "Anthology of Great Buddhist Priests' Zen Teachings". 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 book printed with movable metal type in September 2001 and inscribed it on the Memory of the World Register.