First World War

A selection of books about World War I. These are mostly about the origin of the war, and to be frank, I chose these mostly because they made a big impression on me when I read them. 
Hastings, Catastrophe 1914: Europe Goes to War
Fromkin, Europe’s Last Summer: Who Started the Great War in 1914?
Strachan, First World War, vol 1: To Arms
Fischer, Germany’s Aims in the First World War (Griff nach der Weltmacht)
Joll, The Origins of the First World War
Koch, The Origins of the First World War: Great Power Rivalry and German War Aims
Martel, Origins of the First World War (3rd ed., revised)
Mombauer, The Origins of the First World War
Taylor, The Struggle for Mastery in Europe
MacMillan, The War That Ended Peace
Horne, A Companion to World War I
Herwig, The First World War
Keegan, The First World War