These videos and document are great resources for general leadership development. All of these are useful and necessary for missional leadership as well, but for pointedly missional resources see the missional resources page.
Self Differentiated Leadership
A brief introduction to the need for self-differentiated leaders in the Systems approach of Murray Bowen and Edwin Friedman.
Adaptive Leadership
Ron Heifetz, author of Leadership without Easy Answers explains what adaptive leadership is and the difference between technical problems and adaptive challenges.
The Importance of First Followers in Supporting a Courageous Leader
In his video, Leadership Lessons from Dancing Guy, Derek Sivers teaches us that people don’t follow leaders, they follow other followers. Thus the first people to join a courageous leader are the real leaders, making it safe for others to follow, too.