Most of the information presented herein has already been presented by earlier authors writing about the Great Escape. One unique feature of this book is the testimony of those 7 of the original 76 escapees who were still alive at the time of publication of this book (2004). Most of them believed, in retrospect, that the Great Escape had been worth it. But one of them opined that it was not worth the lives of the 50 who had been murdered by the Germans. The book has some unique photographs, and contains an extensive bibliography of books and other materials on the Great Escape.
Carroll provides good detail about the construction of the three openings (traps) of the tunnels Tom, Dick, and Harry. A group of Polish RAF officers who were engineers designed and built the traps. So cleverly were the traps constructed that the Germans found only one of them (Tom), and then only by accident and after numerous unsuccessful intensive searches.
The author Carroll makes some biased statements that detract from the otherwise excellent quality of the book. He claims, for instance, that the escaped POWs were engaging in espionage because the information they obtained was not all entirely related to their escape prospects, as they necessarily observed objects of military significance during their traverses through Germany and Germany-occupied territories. But, using such a loose definition of espionage, how could escaped POWs not be engaging in espionage? He also makes the ridiculous statement that Churchill wanted to "flatten every acre" of Germany, and brings up the destruction of Dresden in this regard. In actuality, Churchill expressed moral reservations about the conduct of Allied bombing following the Dresden firestorm, whose death toll at the time had been exaggerated several times over by German propaganda (an exaggeration which at times continues to this day). Carroll also claims that the shooting of POWs was a matter of concern to both Germans and Allies, but the murder of Jews was not. This is manifestly incorrect and Carroll, a historian, should know better. In fact, from the earliest days of the war, as German atrocities against Poles and then Jews began to mount, the eventual punishment of the German criminals had become one of the reasons for fighting the war.