- The Barddas of Iolo Morganwg: A Collection of Original Documents, Illustrative of the Theology Wisdom, and Usages of the Bardo-Druidic Systems of the Isle of Britain
- The Myvyrian Archaiology of Wales: Collected Out of Ancient Manuscripts, Volume 1
- Cyfrinach Beirdd Ynys Prydain: Ys Ef Llwybreiddiaeth Ag Athrawiaeth (1829)
- Poems, Lyric and Pastoral ..; Volume 2
- Iolo Manuscripts: A Selection of Ancient Welsh Manuscripts, in Prose and Verse, From the Collection Made by the Late Edward Williams, Iolo Morganwg, ... and Subsequently Proposed As Materi














