In the years after the war, Schramm authored a number of books on the history of the German military, as well as in-depth accounts of the desperate last days of the Third Reich as seen from inside the military command. Schramm's work in this field, particularly his multi-volume edition of the official diaries of the High Command, is still highly valued by military historians. Schramm was able, along with three of his former students, then professors themselves, to re-assemble the diary from copies he had saved in defiance of Hitler's scorched earth orders, combined with copies of diaries of earlier years which had been saved by Greiner, his predecessor as war diarist.