I bought this to complement and update a copy of Paul Brickill's 1951 book 'The Dam Busters' that I found in a charity shop.
This too follows the same format, with the design and trials of the weapon, the steps to persuade the various government departments and the RAF of the feasibility and possibilities of UPKEEP and HIGHBALL, as well as an indication of the various meetings and highs and lows that Barnes Wallis experienced, occupying the first half of the book. Of necessity, this part of the book can be viewed as slow and even (as some readers have said or implied) over-detailed. I must admit that I had trouble keeping pace with who was who and why they mattered, but this is after all a history of the conception and delivery of the raid, and this part is vital to understand what follows and to pay due credit to those involved.
The second part is faster-paced with the raid being described in the same meticulous detail. The author does a good job of 'conducting' the various events by pausing the action in one area in order to draw in something else relevant that that is happening in the same timeframe.
There are very helpful appendices and I must confess I had my finger jammed in them to help me understand the flow of events.
I would recommend this book to anyone with an interest in RAF, or World War 2 history. If the reader gets bogged down in the early part of the book they can always skip to the raid itself.
In summary this meticulous work made me appreciate again not only the genius of Wallis, the commitment of the engineers - both RAF and civilian but also the valour of the young aircrew; all of whom just got on with the job.
PLEASE NOTE: The cover depicted as of March 2012 (a simple blue background with a close-up of two of Lancaster's Merlin engines) is the cover of an older edition of the book. The one I recieved had a new 2012 Introduction and Postscript.