Four is an arbitrary number, but I structured the question as I did so it would force people to make interesting decisions, as parameters breed creativity and such. I know college classes would have a theme, and have many more books, but I choose college as a framework for the question, so the answerer wouldn't have to worry about banned books or books being too long or hard to read. I also didn't specify a theme for the books because that allowed people to pick books I never would have even considered, like graphic novels or very recent commercially oriented works, which lead to me requestioning the purpose and goal of reading books for education.
And I've added many books to my reading list because of this question, as it is high praise for someone to put a book on such a short list, as they think the books so meaningful among all the books they've read, or a book they would really love to dissect and better understand. I am much less to impressed read chosen books the longer someone's list goes, though Treamayne, I am always appreciative to the incredible detail you bring to discussions like these. But if you had to slim down your list--to maybe not four, if you still consider that too small, but a more compact list--what books do you think have impacted you the most, and/or could help others learn the most from?
Magi, that's a really good list. I hadn't considered Outsiders, though I remember reading it and liking it a lot. I almost chose Gatsby, and shakespeare, but put them aside because I assumed most high schoolers got to them, and I thought it more important to expose students to other literature then drill down on what they've already read.