This article describes in detail the application of development diplomacy in the context of international co-operation for poverty reduction in Highly Indebted Poor Countries. In particular, the authors describe the goal of the International Labour Organisation--a non-state actor--in advocating the inclusion of employment and Decent Work Agenda policies in Poverty Reduction Strategy Papers, an instrument developed by the International Monetary Fund and the World Bank. In order to achieve such inclusion, the International Labour Organisation mandated CSEND to create an advocacy based guidebook and negotiations simulation in order to influence future Poverty Reduction Strategy Paper negotiations.