The Wall: Rome's Greatest Frontier
Hadrian's Wall (Penguin History)
A History of Roman Britain (Oxford History of England)
Legions of Rome: The definitive history of every Roman legion
The Picts: A History
The Reach of Rome: A Journey Through the Lands of the Ancient Empire, Following a Coin
An Archaeological Guide to Walking Hadrian's Wall from Bowness-on-Solway to Wallsend (West to East) (Per Lineam Valli Book 2)