The Organization of the Islamic Conference (OIC), its Charter, and other multi-lateral instruments, have escaped the attention of scholars despite the formal existence of OIC since 1973. This work provides an in-depth analysis of the legal aspects of Islamic co-operation in a manner which combines classical aspects of the Islamic Siyar and modern aspects of political and economic co-operation among member states of the OIC. This is the first book on the Charter of the Islamic Conference giving a comparative analysis of the legal framework of economic cooperation among Third World countries, including the promotion and protection of investments. International lawyers; economists; academics specializing in the Islamic world; and organizations working in this field.