What is the author's tone in Incognito: The Secret Lives of the Brain by David Eagleman?

Eagleman strives to maintain an easy, conversational tone throughout the book. When he is presenting the results of academic research he provides just the broad outline of the experiments and studies that he feels support his thesis. He uses humor and makes references to popular culture throughout the book. Eagleman frequently addresses the reader directly, proposing thought experiments and making analogies to everyday activities like driving a car.