How to Write a Thank You Note

Darren Daly: Anyone can grow into a leader. No matter your personality type, you only need to know how. He says leadership is not about being gregarious or extroverted; it's about people. The one who believes in them sees their uniqueness and makes them feel important., he writes. Darren tells the story of Daniel Campbell, an introvert who rose from humble beginnings as a receptionist to become CEO at Campbell's. Share your own inspirational stories with CNN iReport.