This document defines and discusses public administration. It begins by defining public administration as the implementation of government policy and the academic study of such implementation. It then discusses the nature, fields, components, and institutions of public administration. The fields covered include local governance, fiscal administration, policy analysis, organization management, and emerging fields like public enterprise management. It also discusses the relation of public administration to other disciplines like economics, criminology, and engineering. Finally, it provides overviews of key Philippine government institutions in public administration like the Commission on Audit, Civil Service Commission, and Commission on Elections.