The purpose of this Sourcebook is to pull together into a single document a collection of common sense tips and recommendations based on actual practices and experience around the world. The sourcebook identifies a core list of 19 priority indicators, as well as a menu of some 86 indicators that are categorized by sector, subsector and theme.  The menu of indicators was validated through in-country workshops in Cambodia, Nicaragua, Nigeria, Senegal and the United Republic of Tanzania.