Colossus Reborn: The Red Army At War, 1941-1943 by David M. Glantz

Excellently detailed book! Some of the information is rehashed from previous Glantz books but put into very good context, especially with the enormous amount of details, tables, statistics, and facts. For those who are interested in learning more about the Eastern Front, and by more I mean really in depth like how many tanks per division/brigade/corps at certain periods during the war, what type of nationalities made up some of the rifle divisions/corps, or how many men were some divisions down to at one time or another (one guards division had 80!!! out of a required paper strength of over 10,000!!), this is a very good investment and you will not be disappointed! He also addresses some of the 'what if's' and 'myths' that have been created around the Eastern Front for the past few decades, so a big help in that respect as well.