I believe very strongly in the work that volunteer board members do, but this said I do believe they need to deliver the goods their role demands. Here are 4 great books that have helped me be a better board member.
Startup Boards: Getting the Most Out of Your Board of Directors by Brad Feld, Mahendra Ramsinghani
Boardroom Excellence: A Common Sense Perspective on Corporate Governance by Paul P. Brountas
The Board Book: An Insider’s Guide for Directors and Trustees by William G. Bowen
Boards That Lead: When to Take Charge, When to Partner, and When to Stay Out of the Way
by Ram Charan Dennis Carey , Michael Useem
These 4 books may be bought at Amazon in Kindle format.