I have exciting news. While doing research on servant leadership I found that "Servant Leadership: A Journey into the Nature of Legitimate Power and Greatness" by Robert Greenleaf, Foreward by Stephen Covey, and Afterward by Peter M. Senge is available to read on Google Books at http://books.google.com/books?id=gOexpCA5JqIC&dq=servant-leadership&printsec=frontcover&source=bn&hl=en&ei=sz3SSt6_DJuqtgel_tyCBA&sa=X&oi=book_result&ct=result&resnum=4&ved=0CCIQ6AEwAw#v=onepage&q=&f=false

I would encourage you to of course buy this book for you own bookshelf, to that you can reflect on the words over and over again and use it a reference that it at your fingertips, but this is a great way to get your feet wet. Enjoy.