In the Nazi era, book etiquette was primarily: bung them in a big pile and burn them. Nazi book clubs were attended not so much by literary types but people with poor circulation thankful for the warmth generated. Fascist book club members were less inclined to suggest next meeting, 'I'll bring along a good book'; more likely, 'I'll bring the marshmallows.' (Continued at http://www.tinybangtheories.com/2012/04/hard-to-download-good-ebook.html).
Best wishes,
Paul (Ed.)