Best books for CSR ( corporate social responsibility)??

Hey! I would like to know which are the best training/ courses books for Corporate Social Responsibility ( CSR) ?
Thank you.

Answer: My mentor introduced Virtues Guide to me. Totally different fr other management books. But materials/virtues used helped me in my CSR esp when running an NGO against family violence.
Rather odd that such a book can be a guide to better CSR.
http://www.amazon.com/Family-Virtues-Gui…