This book examines the transformations happening in Global societies, the economy and in politics, to trace the trajectory of public Administration as an academic discipline as well as being a focus of social Science research. It presents a reassessment of governance in heterogeneous developing countries that goes beyond the traditional weberian bureaucratic model, toward new models of organization and management, informed by their legal, constitutional, economic and political needs, aspirations and ground realities. This is especially important in relation to the marginalized sections of society that primarily rely on citizen entitlements through public Service delivery systems.