"Incognito: The Secret Lives of the Brain" is a book by David Eagleman. He is a neuroscientist and the theme of the book is that the conscious mind, basically "you", then it is just the tip of the iceberg of what is going on inside your brain, and he tries to explain what else is going on.

• Why can your foot move halfway to the brake pedal before you become consciously aware of danger ahead?
  
• Why do you hear your name being mentioned in a conversation that you didn’t think you were listening to?
  
• What do Ulysses and the credit crunch have in common?
  
• Why did Thomas Edison electrocute an elephant in 1916?
  
• Why are people whose names begin with J more likely to marry other people whose names begin with J?
  
• Why is it so difficult to keep a secret?
  
• And how is it possible to get angry at yourself—who, exactly, is mad at whom?
  

He uses examples of brain damage, plane spotting, dating, drugs, beauty, infidelity, synesthesia, criminal law, artificial intelligence, and visual illusions.