Visit our FULL SITE to order Print or eTextbooks With this deck of Fifty Things That Might Kill You, pick your symptom and pick a card (or cards) to see what rare, multisyllabic, and possibly fatal disease you might have5.43 x 3.75 x 1.25 inches; 50 cards, plus instruction pamphlet- A symptom checker that mixes dark humor (and actual facts) for hypochondriac fun!- Warning: self-diagnosis may cause fear of serious illness, phantom symptoms, unhealthy coping mechanisms, self-absorption, anxiety, oversharing, sweaty palms, and hyperventilation- Knock Knock is an independent maker of clever gifts, books, and whatever else they can think up; their mission is to bring humor, creativity, and smarts to everyday life