Malcolm Gladwell is my top nonfictioner. He is interested in everything. Cancer treatments, women’s hair dye advertising, dogfights and ketchup. It is always begins with the people and Malcolm is understanding and generous in describing them and the reasons for their actions. He boils down the data so it’s easy to hold in your head, then expands it so you grasp it’s significance in the world around you. Sometimes you will face upsetting things, but his calm voice will lead you through the car crashes and the shootings to the meaning. It’s often the opposite of what you were expecting.