Lynette recommends When Books Went to War: The stories that helped us win WWII by Molly Guptil Manning.
It is about the program during WWII that provided paperback books to our soldiers – thousands of books – which may have had an impact on the war but definitely had an impact on the publishing industry. It established the paperback as a medium. The appendix not only details many of the books banned and burned by the Nazis but it also lists all the books published in a special format especially for the armed forces.
If you recognize the titles after all this time, they probably qualify as classics.