When I was asked which skill was most essential for board members, I immediately considered one that I thought they should definitely master: listening.
The role of a co-operative board 
The Humble Board Member 
Listening to the Board 
Improving Board of Directors- 
Identifying Board Values 
Guiding Principles 
Directors Wear Many Hats 
Conveying the Role of the Board 
Board Composition and Recruitment 
6 Essential Skills Board Members Should Master