Book of Taliesin

Book of Taliesin
Aberystwyth, NLW, Peniarth MS 2
facsimile, folio 13
Also known as	Llyfr Taliesin
Date	First half of the 14th century
Language(s)	Welsh
Size	38 folios
Contents	Some 60 Welsh poems

The Book of Taliesin (Welsh: Llyfr Taliesin) is one of the most famous of Middle Welsh manuscripts, dating from the first half of the 14th century though many of the fifty-six poems it preserves are taken to originate in the 10th century or before.

The volume contains some of the oldest poems in Welsh, possibly but not certainly dating back to the sixth century and to a real poet called Taliesin (though these, if genuine, would have been composed in the Cumbric dialect of Brittonic-speaking early medieval north Britain, being adapted to the Welsh dialect of Brittonic in the course of their transmission in Wales).