A series of delightful stories (delightfully illustrated) which come from letters written over a 20-year period by Tolkien to his children.
Apparently latter editions (published as Letters from Father Christmas) contain material not included in this one, and I'll certainly seek a copy out.
In this interesting and well-written book, Gannon looks at British codebreaking in World War I. In doing so, he dispells some of the myths (deliberately planted he suggests) about the foundation and operation of Room 40.
As well as the Admiralty's Room 40 he looks at what little is known of the War Office's equivilent MI 1(a). Work between the two wasn't co-ordinated and there was little co-operation before 1916, but broadly Room 40 (or ID 25 as it was properly known later in the war) concentrated on wireless intercepts, whereas MI 1(a) worked on cable intercepts. As well as providing naval and military intelligence they each worked on political (ie, diplomatic) intelligence, with important results - most famously the interception and publishing of the Zimmermann Telegram.
Kim Newman, Something More Than Night
JRR Tolkien, The Silmarillion
Carrying on from last month, I continued reading The Silmarillion in conjunction with episodes of The Prancing Pony Podcast, which considers a chapter in each episode. That proved a very profitable was of doing it. It was something of a time committment though - the podcast spent over 60 hours of audio discussing the book!