This is a truly landmark book for anyone who aspires to lead, whether in business or any other walk of life.
Goes much deeper than the usual management tips and techniques books and forces you to consider what kind of person people naturally want to follow. Not instructional as such, but if you want to be a leader, and most importantly, if you aspire to be a "great leader that people will be inspired by and follow", then this book is going to be very important. It doesn't prescribe the specific traits you need, but focuses on the behaviours that cause people to willingly follow great leaders. How you use these insights and weave your own personal leadership style is up to you, and will require a deep appreciation and understanding of both yourself, and especially those that you aspire to lead.