Some references for you:
1. Rath, T, & Conchie, B. (2008). Strengths based leadership. NY, NY: Gallup Press.
This book is a foundational piece for developing a strengths based leadership model.
The following is the web link for StengthsQuest, explore and enjoy: http://www.strengthsquest.com/home.aspx
2. Blank, W. (2001). The 108 skills of natural born leaders. NY, NY: AMACOM.
This book is a fun and interesting read that provides a nice delineation of leadership skills with clear definitions and practical applications.
3. The One Minute Manager book series by Ken Blanchard and colleagues are quick and easy reads and help provide many practical applications. It is encouraged to check out the following from that series:
a) Leadership and the One Minute Manager
b) The One Minute Manager Builds High Performing Teams c) Empowerment Takes More Than a Minute
d) Who Moved My Cheese?
4. Lencioni, P. (2002). The five dysfunctions of a team. San Francisco, CA: Jossey-Bass.
This book helps to show the importance of a strong team and the impediments to forming that strong team. It helps to establish common sense methods and ideas for overcoming obstacles in effective team building.