Not all of the titles in these series are relevant to Roman history nor are all titles ebooks
Legionary shield blazons from Trajan's Column.
Companions consist of a topic on which chapters are contributed by individual authors. Read one or more chapters as if you were reading several articles.
Classics - Oxford Bibliographies combines the best features of an annotated bibliography and a high-level encyclopedia. It provides expert recommendations on the best works available – whether it be a chapter, a book, a journal article, a website, an archive, or data set.