Santrauka: Our lives are driven by a fact that most of us can't name and don't understand. It defines who our friends and lovers are, which careers we choose, and whether we blush when we're embarrassed. That fact is whether we're and introvert or an extrovert. The introvert/extrovert divide is the most fundamental dimension of personality. And at least a third of us are on the introverted side. Without introverts we wouldn't have the Apple computer, the theory of relativity or Van Gogh's sunflowers. Yet recently extroverts have taken over. Sensitivity and seriousness are seen as undesirable. In the international bestseller 'Quiet', Susan Cain shows how the brain chemistry of introverts and extroverts differs, and how society undervalues introverts. She gives introverts the tools to take full advantage of their strengths. Passionately argued, superbly researched and filled with real stories 'Quiet' will permanently change how you see yourself.