This book explores the differences in social policy between developed and developing countries, emphasizing that simply copying policies from developed nations to apply in developing ones is not advisable. The aim is to bridge the gap between understanding and practice, addressing the lack of literature on public policy in developing countries. Drawing from the author's lectures and experiences in policy development in Indonesia and other Asian developing countries, the book presents a range of often untold best ideas and practices. It advocates for the creation of indigenous models of social policy in developing nations that can enrich theoretical frameworks and practical applications. This is a shared learning process, fostering cross-fertilization of ideas, and is intended to advance public policy development in these countries.