How many books have been written about D-Day? Dozens? Hundreds? The question we must therefore ask ourselves is does this book add anything to the already impressive list?
And I have to say it doesn't really. Most of what is here has been revealed before. Sure there are some new "voices" from the battlefield and elsewhere but we have seen innumerable such "memoirs" over the past few years (I notice another of the "Forgotten voices" series specifically for D Day has recently been published)
Where Beevor scored with Stalingrad and Berlin was that he had access to new material released in Russia which allowed a whole new dimension to be opened. Such material must be pretty thin on the ground regarding D Day so there is not much that is new here.
It is apparent that such a huge concern needs a multi-volume work or indeed perusal of the many books that come up if you type in "D day" in the search engine above. (7000+ books!) My personal favourites have always been the Purnell History of World War 2 series of books that came out originally in the 60's. They were and are (if you can find copies) fascinating reading for anyone interested in the military events of the time.
Having said all that, this is still well written and easy to read which would make it serve as a good introduction to the events of the 6th of June (This piece is being written on the 65th anniversary of the eve of the battle) but for more detail you'd be better turning to many of the other books on the subject
One final thought, I note that some of the other reviews of this book are aghast at how Amerocentric this book is. Equally I notice that Robin Niellands' book for example is seen as being too Anglo/Canadian centric. Why not read both and then make up your own mind? (And "Overlord" by Max Hastings, "Pegasus Bridge" and "Band of Brothers" by Stephen Ambrose, or "Piercing the Atlantic wall" by Robert Kershaw or....how long do you want the list to be?)
In any case if you haven't already done so may I also heartily endorse the Imperial War Museum's D Day Experience, absolutely brilliant especially for younger people interested in the period - just read the reviews on Amazon if you don't believe me.