Now this is unusual - a book of military history, written by a woman who was right at the heart of one of the most exciting events during the Second World War. In fact, you might even say she precipitated it.
Constance Babington Smith (Babs) was a photo interpreter herself, and here she writes compellingly about the toil and the excitement of detecting enemy actions from the study of aerial reconnaissance photographs. It was Babs herself who made several significant discoveries, including spotting the first jet-propelled rocket in history.
The book isn't a dry recounting of historical facts, but a well-told tale of how it really happened. And it includes some stellar black-and-white photographs to help the reader understand how photo reconnaissance works.
Babington Smith wrote this book in 1957, just twelve years after the war ended, and it was reprinted in 1974.