Quiet: The Power of Introverts in a World That Ca't Stop Talking by Susan Cain

Explores how introverts have been overlooked in our society while extroverts have become the ideal in the twentieth century and discusses the research that has been done in the fields of psychology and neuroscience which reveals the differences between these two types of people. Includes chapter notes and an index. 

I found this book so fascinating!  If you are an introvert, you will probably relate.  If you are an extroverts, it will help you to understand and get along with others who are introverts.