It is a publication of Islamic Development (Is DB) key socio-economic statistics on Is DB member countries of 2013. This publication, inter alia, covers Demographic and Human Development Indicators, Macroeconomic Indicators, and External Sector Economic Indicators. The purpose of the Monograph is to fill the gap in aggregate statistics on indicators of member countries that are not available in any statistical publications of international organizations, thereby enabling users to monitor the progress of the performance of member countries individually or collectively towards achieving the targets set in various initiatives such as the Millennium Development Goals, the IDB 1440H Vision, and the OIC Ten-Year Programme of Action.