The Public Administration Theory Primer explores how the science and art of public administration is definable, describable, replicable, and cumulative. The authors describe several theories and analytical approaches that contribute to what we know about policy administration and consider which are the most promising, influential, and important—both now and for the future. The extensively updated second edition includes the latest directions and developments in public administration theory. These include the rise of reporting as a means to hold bureaucracy accountable, the continuing evolution of the “hollow state” or “shadow bureaucracy” and the rise of network theory, and new psychological and biological behavioral research with important implications for decision theory and rational choice. The contributions of nearly a decade’s worth of new research are woven into all the chapters, in some cases altering conclusions about the health and robustness of certain popular conceptual frameworks.