The Epic of Gilgamesh was written around 2500 BCE. That makes it the oldest book on Earth. Older than the Bible. And people are still talking about it. Warm Bodies even uses it as its epigraph (which you can read more about in our "What's Up With the Epigraph?" section). This alone shows the crazy longevity of the written word. The characters in that book—in any book—stay alive long after its author has moved on. Like everything in Warm Bodies, the ultimate result is life. Life is like one big system that's bigger than just people, and reading and writing is a crucial artery to keeping lifeblood flowing.