Library entrance introduction: The library contains The Book of Kells, which was completed by monks in the 9th century. It is a national treasure of Ireland and extremely precious. This book originated from the golden period of the development of the church in the early Middle Ages. It was written in Latin and is the most perfect handwritten masterpiece in ancient Irish history. It records the development of religion, culture, art and other aspects at that time, including Jesus, the Virgin and the Son. , portrait illustration of St. John and St. Matthew.