Why

Authors: Francesca Gould, David Haviland

The Why book series by Francesca Gould & David Haviland includes books Why Is Yawning Contagious?: Everything You Ever Wanted to Know About the Human Body, and Some Things You'd Rather Not, Why You Shouldn't Eat Your Boogers and Other Useless or Gross Information About Your Body: Information About Your Body, Why Dogs Eat Poop & Other Useless or Gross Information About the Animal Kingdom, and several more. See the complete Why series book list in order, box sets or omnibus editions, and companion titles.