There are heaps of books on leadership. Check for definitions of leadership and you can spend the next few hours reading up tons of material. Since people look up to their supervisors and often behave as they do- let me put down what I believe isn’t leadership. Many young people beginning their careers unconsciously model themselves on their supervisors. If they have enlightened leaders as supervisors- that’s great and they will gain from that experience. But what if they don’t? Not everyone is that fortunate.