“Advances in Policy Studies since 1950” is a comprehensive textbook published by Routledge in 1991 by author Rita Mae Kelly. Covering a wide range of subjects in political science, specifically focusing on public policy, this hardcover book is a valuable resource for advanced students and professionals interested in understanding the evolution of policy studies in the latter half of the 20th century. With 420 pages of in-depth analysis, this textbook offers a comprehensive overview of key developments and insights within the field of public policy.