The Book of Kells is an illuminated manuscript Gospel book in Latin, containing the four Gospels of the New Testament together with various prefatory texts and tables. 

It was created in a Columban monastery in either Britain or Ireland and may have had contributions from various Columban institutions from both Britain and Ireland. It is believed to have been created c. 800 AD. The text of the Gospels is largely drawn from the Vulgate, although it also includes several passages drawn from the earlier versions of the Bible known as the Vetus Latina. 

It is a masterwork of Western calligraphy and represents the pinnacle of Insular illumination. It is also widely regarded as Ireland's finest national treasure.  

The manuscript takes its name from the Abbey of Kells, which was its home for centuries. Today, it is on permanent display at Trinity College Library, Dublin. The Library usually displays two of the current four volumes at a time, one showing a major illustration and the other showing typical text pages, and the entire manuscript can be viewed on the Library's Digital Collections Repository.