These are the purchased books I refer to when researching Romans in Scotland. Many of them are heavy reading as they are written by professionals for an academic audience. There are a number of Free Books on the Romans in Scotland to download and read.
Books to buy (click on image to get details on Amazon)
I like the kindle as I can search for keywords across all books and take many books with me when I travel.
Note the links above have an Amazon tag on them which means I get a small % if you buy them but it doesn’t cost you any more. Go to Amazon direct if you do not agree with this.