This book focuses on the essentials that public managers should know about administrative law—why we have administrative law, the constitutional constraints on public administration, and administrative law's frameworks for rulemaking, adjudication, enforcement, transparency, and judicial and legislative review. Rosenbloom views administrative law from the perspectives of administrative practice, rather than lawyering with an emphasis on how various administrative law provisions promote their underlying goal of improving the fit between public administration and U.S. democratic-constitutionalism. Organized around federal administrative law, the book explains the essentials of administrative law clearly and accurately, in non-technical terms, and with sufficient depth to provide readers with a sophisticated, lasting understanding of the subject matter.