Original sentence: The book, written during his imprisonment by the Allies after the war, describes Guderian's service in the Panzer arm of the Heer before and during World War II
Edited sentence: However, his memoirs — written while imprisoned by the Allies after the war — also seem to be colored with public relations spin and perhaps a bit of self-aggrandizement as well, and may merit a measure of skepticism on the reader's part.The book describes his service in the Panzer arm of the Heer during World War II