The best way to address this assignment is to take an excerpt from the novel and display it on your poster. For example, you might title the poster 'only seeing is believing' then create pictures that show the men in the meat packing industry up to their knees in animal blood and guts. You do not indicate whether you have read the novel, if you have then you recognize my suggestion, if you have not you should read over the summaries provided by e notes. Good luck!!!