There are a plethora of Leadership books in print, and more are invading the marketplace constantly. Ultimately Leadership remains a statistical algorithm and great leaders understand the algorithm and how to manage it properly.
In essence, the algorithm contains 20% of positive people who will embrace ideas follow instructions with unconditional commitment. At the other end of the algorithm is another 20% of negative people who oppose all ideas. In between is that 60% critical mass that can sway in either direction.