A while ago I read four books on leadership and management and wrote summaries of them. The summaries are slightly biased in that they are mostly what I found to be useful and how I interpreted the books. I don’t necessarily endorse the points made by these books. If you are interested in management I would suggest you read these, with Managing to Change the World as my strongest recommendation.
These books mostly talk about how to manage a team of people that are being paid to do some work. If you are managing a team of volunteers, the dynamics change significantly and you, as a team leader, have much less authority over how people behave. It is important to set clear expectations with people in such a context (how many hours a week they’re willing to work is the most important variable).