The Invasion of Europe by the Barbarians (1928) is a brief history of the so-called Migration Period during the last stages of the Roman Empire. The historiography has changed considerably since Bury with the idea of a transition, not a stark break, as seen in the field of Late Antiquity. Nevertheless Bury's writing can be captivating at times, and is based on the same limited number of sources historians still use, the bare facts are not wrong. It is a relatively short book meant for a general audience. Nevertheless it is a complex topic - you'll want to know the difference between Ostrogoths, Visigoths, Burgundians, Alans, Lombards, Angles, Saxons, Jutes, Suebi, Alemanni, Gepids, and Vandals - to name a few. Plus all the colorfully named Barbarian warriors and Kings. It's the kind of topic you have to keep reading and refreshing, what exactly happened and why remains one of the great questions of history. ( )