Lingua Latina per se Illustrata - C. Ivlii Caesaris Commentarii De Bello Gallico ex Libris I, IV, V

This book is part of Ørberg’s Lingua Latina per se Illustrata course.
It is an abridged edition of books I (partial), IV and V of Caesar’s De Bello Gallico, with marginal notes in Latin explaining difficult passages and words not included in the first part of the course, Pars I: Familia Romana.
A Latin-English Vocabulary is available.
For more information, see the descriptions of the two main books of the course: Pars I: Familia Romana and Pars II: Roma Aeterna.