Barbarossa 1941 by David M. Glantz

A great introduction to the Eastern Front. Glantz did a great job with this book, a lot of information and sources (I especially liked the table that had which army was activated when and where it was moved, quite helpful). Glantz addresses Barbarossa and how it came about, he gives a good overall account of the invasion and the encirclement operations by the Germans and at the same time also discusses the 'myths' that have begun to circulate about the Eastern Front of 1941. A great addition to any library on the Eastern front and a source that I come back to time and time again for my needs when it comes to the invasion and Red Army actions in 1941.