All in all I found it a turgid read, but was totally fascinated by the way the man was consumed with detail but somehow missed the most facing pungent problem facing the Allies in WWI (he considered fighting U-Boars nigh impossible). The convoy solution to the problem was mentioned in passing (and is literally the oldest trick in the naval service book) as „logistical problems were eventually solved“, no hint at the political issues (understatement, ahem) with Lloyd George and no admission of credit to which the crisis was turned around. Plenty of attention to efforts and energy of ideas and systems that did not really yield the results effective convoys did. A far cry from an account of the same period from these Wikipedia pages: