Another term used to describe theme in a nonfiction work is: main idea introduction author’s purpose inference

americans experinced rations on food and be gangrene their own food and feed their families going to go over jobs that were orginally only for men.

the best description of postwar writers might be progressive.

following the war, writers showed a tendency to work on artistic or social matters rather than political themes. while postwar literature may not have been the greatest period of english literature, the themes provided excellent critics a high number of novels. such examples include anthony burgess, anthony powell and frank kermode, all of which can be placed under the progressive view.