First published in 1980, Street-Level Bureaucracy received critical acclaim for its insightful study of how public service workers, wielding considerable discretion in how to execute their jobs, function as policy decisionmakers. Three decades later, public urgency to bolster the availability and effectiveness of healthcare, social services, education, and law enforcement has intensified, making Street-Level Bureaucracy more relevant now than ever. In this thirtieth anniversary expanded edition, Michael Lipsky revisits the territory he mapped out in the first edition to reflect on significant policy developments and show that street-level bureaucracies can be improved and work in public service fields can be rewarding.