Toward a New Public Diplomacy explains public diplomacy and makes the case for why it will be the crucial element in the much-needed reinvention of American foreign policy.
Williams, A. (2009). The U.S. Military and Public Diplomacy. In Toward a New Public Diplomacy (pp. 217–237). Palgrave Macmillan US. https://doi.org/10.1057/9780230100855_11