It surprises me sometimes how few folks know about Bletchley Park, much less the impact it had not only on the Allies success in WWII but also that it's the birthplace of modern computer science. This book tells the story of how a chance visit to Bletchley by Dr. Sue Black, a computer scientist, where she saw the state of disrepair of what should've long ago been a British landmark, caused her to embark on a campaign to save it...using Twitter!