Up front, this is a review of the Kindle version of this book. There are many adequate reviews of the content already, so I won't add more than to say that this was a well done book that presented some interesting perspectives on not just the battle of Cannae but events preceding and following that battle. It should be of interest to those who are interested in military history, but probably not those who consider themselves military history scholars.
As for the kindle version, this book was poorly done. I typically read from my Kindle when I am at home or extended travel and from my iPhone during my daily commute and routine travel. This book includes frequent, large hyperlinks to the end notes. Often these hyperlinks are in the position on the page that an iPhone reader would hit to turn the page. Once this hyperlink is followed, it becomes 'the furthest page read' thus ruining synchronization between multiple reading devices. Unfortunately, there is no easy way to correct this. Also, it appears that the publisher has limited the content to only be read simultaneously on two devices. Had I know either of these things, I would not have purchased the book. This should be fixed immediately.