This document discusses introversion and lists some famous introverts. It notes that introverts tend to focus more on internal feelings than external stimulation, find social activities exhausting but still enjoy socializing in moderation with time alone to recharge. Introverts are said to have thicker prefrontal cortexes, enjoy thinking and analyzing, work well in solitude or small groups, and can stay focused for longer with better long-term memory. Some famous introverts highlighted include Charles Darwin, J.K. Rowling, Dr. Brian Little, Steve Wozniak, and Emma Watson. The document also references the book "Quiet" by Susan Cain about the power of introverts.