The best part of "Quiet" is that the insights gleaned from these studies can help introverts take advantage of their special traits and thrive on their own terms in an extroverted world. Since introversion and extroversion are preferences for a certain level of outside stimulation, Ms. Cain advises introverts to find their "sweet spot" --or what scientists call the optimal level of arousal. Scientists also notice that introverts engage in "deliberate practice" or working alone so for those looking for a job, Ms. Cain encourages them to pay attention to the layout of working spaces to determine how much interruption they may have to deal with at work. For those still deciding on a career, the author reminds readers that research shows that introverts are not reward-seeking like extroverts, but rather motivated by the enjoyment they find in pursuing an activity; in other words, by being in what psychologist Mihaly Csikszentmihalyi calls the "flow". Ms. Cain offers encouragement to introverts to venture in the extrovert world because we all have the ability to stretch our limits but the optimal way for introverts to do it is in the service of their "core projects," the things they are passionate about. And for those with children, the author dedicates an entire chapter for helping introvert children become confident and comfortable in extroverted environments and situations.