Tribal Leadership: Leveraging Natural Groups to Build a Thriving Organization by Dave Logan, John King, Halee Fischer-Wright
This was a transformational book for me; after reading this book is when I really got a vision of how to be the kind of leader I envisioned.
This is when I learned that my number one job was to create an environment then nurturing behaviors to cultivate a thriving culture.
Strengths Finder 2.0 By Tom Rath
This book is one where you take a personal assessment, then use as reference. I use this for my whole team(s) so we can establish a common language to understand and learn how to leverage our natural differences/gifts (aka Strengths). Highly recommend that this work be accompanied by coaching. In the San Francisco Bay Area, Dr. Greg P Nelson is excellent.