This book drastically exceeded my expectations. I had read Norman Stone's East Front book, Wawro's A Mad Catasrophe, and Sweetman's Tannenberg. While not as comprehensively focused on Tannanberg as Sweetman's excellent book, it provides a great overview of the East Front Combatants and all the major campaigns of 1914 on the East Front. I found his explanations of the Galicia campaign easier to follow than Wawro's AND Buttar's description of the Lodz campaign is the most thorough I have read.