I mentioned it earlier but I'm really enjoying it - been on my shelf for years but it's a long read and I'm generally more interested in WWII than WWI history. Dreadnought: Britain, Germany, and the Coming of the Great War. Awesome read about the accession of Wilhelm II to the crown (some of the history before that, as context), the events, personalities (e.g., succession of Chancellors under Wilhelm, Premiers and their cabinets under Victoria, then Edward VII), misapprehensions that brought the whole thing exploding out. The book does fair coverage of these events, so to me, it's like little lessons from contemporary world events I knew little about but have learned some, now (e.g., The Boer War, the modernization of the British navy as the 19th century, and Victoria, grew old, etc.).