Books written by angels

For their part, the Irish combined the stately letters of the Greek and Roman alphabets with the talismanic, spellbinding simplicity of Ogham to produce initial capitals and headings that rivet one's eyes to the page and hold the reader in awe. As late as the twelfth century, Geraldus Cambrensis was forced to conclude that the Book of Kells was "the work of an angel, not of a man."

-- Thomas Cahill, How The Irish Saved Civilization