This book, although interesting, greatly irritated me. The Author was very one sided when it came to her arguments, usually using a quick blurb saying "extroverts are cool too". Every point she makes is strictly speaking to the introvert and not a person who exhibits both traits (which seems to me, the majority of the population).The idea of personality being either extrovert or introvert is a failure, just as someone isn't completely left or right brain dominant. The Author could have built more upon the benefits of introversion itself instead of creating arguments and statistics on whom wins in the race of life. I'll admit, this was an audio book for me which could have played a part in my aversion to the Author. Sometimes when you listen to a book and the voice actor gets under your skin, this can be a death sign for the book itself. I've heard many people adore this book, so I won't say don't read it... It just wasn't my cup of tea.