Halting Stoat by The Hon. Charles St. John Ross
One To Nine, the inner life of numbers by Andrew Hodges
Information and Secrecy - Vannevar Bush, Ultra and The Other Memex by Colin Burke (with a forward by Michael Buckland, the guy who wrote the book about Goldberg and bizarrely with a receipt sent separately).
Which to read first? The last of these has chapters with titles such as 'Disorganising for war. The comparator fails, again' which obviously endears it to me, as a keen student of failology, but I already have a non-fiction book on the go, so maybe I shall read, in the second person, of evil polyamorous cyber-stoats.