The Australian Charities and Not-for-Profits Commission has a guide for current and potential board members of Australian charities.
This guide focuses on "good governance and how it helps charities in the context of their obligations under the ACNC Act". It highlights legal obligations as well as the 'nice to have'. The basis of the guide is that there is always "something you can do to improve your knowledge and the governance of your charity."
Download the guide in full or in sections from here.