The Fourth Book of Virgil's Aeneid and the Ninth Book of Voltaire's Henriad

First, Barnard Knox has written an excellent introduction to the text. He explains Virgil's cultural and literary context, and he discusses the Aeneid's relationship to its Homeric predecessors. Highly recommended reading. Second, the book has a helpful map of Aeneas's wanderings which helps orient the reader. Third, in the back of the book is a pronunciation guide and glossary. Some of these names are a bit strange, so it's a good idea to refer to the back sometimes for some help. Every character and place in the book, no matter how minor, is explained in the glossary.