Immune: A Journey into the Mysterious System That Keeps You Alive NEW YORK TIMES BESTSELLER - A gorgeously illustrated deep dive into the immune system that will forever change how you think about your body, from the creator of the popular science YouTube channel Kurzgesagt--In a Nutshell "Through wonderful analogies and a genius for clarifying complex ideas, Immune is a truly brilliant introduction to the human body's vast system for fighting infections and other threats."--John Green, #1 New York Times bestselling author of The Fault in Our Stars You wake up and feel a tickle in your throat. Your head hurts. You're mildly annoyed as you get the kids ready for school and dress for work yourself. Meanwhile, an epic war is being fought, just below your skin. Millions are fighting and dying for you to be able to complain as you head out the door. But most of us never really stop to ask: What even is our immune system? Second only to the human brain in its complexity, it is one of th...