The Big Book Small Book meme, often referred to as 'Thick Book vs. Thin Book,' is a classic comparison format used to illustrate the massive disparity between two related subjects. The template typically features two books side-by-side: one incredibly thick and one remarkably thin. It is most commonly used to mock the difference between the deep lore of a franchise versus its actual gameplay, or a historical event versus how it is taught in school. The meme became a staple on platforms like Reddit and Twitter because of its versatility in highlighting over-complicated versus over-simplified versions of reality, making it a favorite for fandoms and academic humor alike.