Huvudgrupp 1

• Cunliffe, Barry W., The ancient Celts, Oxford, Oxford Univ. Press, 1997Obligatorisk* (Huvudbok)
• Chadwick, Nora K., The Celts, 2. ed. /b with an introductory chapter by Barry Cunliffe, London, Penguin, 1997
• Kelly, Fergus, A guide to early Irish law, Dublin, Dublin Institute for Advanced Studies, 1988 (Rekommenderas)
• Powell, T. G. E., The Celts, New ed., New York, Thames and Hudson, 1980

* Obligatorisk