About Robert Bruce
Barrow, G. W. S., Robert Bruce and the Community of the Realm of Scotland (Edinburgh University Press, 2006), the scholarly biography.
Duncan, A. A. M. (ed.), John Barbour, The Bruce, (Cannongate 1997), the verse epic which is the principal narrative source for his life, in the original Scots with translation on facing pages.
About medieval Scotland
Broun D., Finlay R.J., and Lynch M. (eds.), Image and Identity: The Making and Re-making of Scotland Through the Ages (John Donald, 1998)
Ditchburn, D., Scotland and Europe: the medieval kingdom and its contacts with Christendom, 1214–1560 (Tuckwell Press, 2001), the European context.
Duncan, A.M.M., Scotland: the Making of the Kingdom (Edinburgh University Press, 1975)
MacDonald, R.A., The Kingdom of the Isles: Scotland’s Western Seaboard in the Central Middle Ages, c.1000–1336 (Tuckwell, 1997)
Nicholson, R., Scotland: the Later Middle Ages (Edinburgh University Press, 1974)
Young, A., Robert the Bruce’s Rivals: the Comyns, 1212–1314 (Tuckwell Press, 1997)
About the English war effort in Scotland
Haines, R.M., Edward II: Edward of Caernarfon: His Life, His Reign, and Its Aftermath (1284–1330) (McGill-Queen’s University Press, 2003)
Nicholson, R., Edward III and the Scots (Oxford University Press, 1965)
Prestwich, M., Edward I (Methuen, 1988)
Watson, F., Under the Hammer (Tuckwell Press, 1998)
About the Declaration of Arbroath
Duncan, A.M.M., The Nation of the Scots and the Declaration of Arbroath (Historical Association, 1970)
Brotherstone, T. and Ditchburn, D. (eds.), Freedom and Authority: Scotland c. 1050–c. 1650: Historical and Historiographical Essays Presented to Grant G. Simpson (Tuckwell Press, 2000)
About the wider context of Robert I’s wars
Davies, R.R., (ed.), The British Isles 1100–1500: Comparisons, Contrasts and Connections (John Donald, 1988)
Duffy, S. (ed.), Robert the Bruce’s Irish Wars: the Invasions of Ireland 1306–1329 (Stroud, Tempus Publishing, 2002), a revised itinerary and chronology in Edward Bruce’s invasion of Ireland.
McNamee, C., The Wars of the Bruces: Scotland, England and Ireland 1307–1328 (Tuckwell Press, 1997), a survey of the wider implications of the conflict.