Authenticity has been explored throughout history, from Greek philosophers to the work of Shakespeare. Authentic leadership has been explored sporadically as part of modem management science, but found its highest levels of acceptance since Bill George's 2003 book, Authentic Leadership. Authentic leaders, according to Bill George, genuinely desire to serve others through their leadership. They are interested in empowering the people they lead to make a difference; more than they are interested in power, money or prestige for themselves. Authentic leadership encourages individuals to investigate their pasts, identify key defining moments in their lives that helped shape who they are and use these as springboards to identity their individual, authentic leadership purposes. In fact, leadership is very personal and different for everyone.