Theoretical foundations for the establishment of world health systems -- World socioeconomic development and health status -- Health system structure and determinants of health -- Basic models and evaluation of world health systems -- Social medical aid system and its analysis -- Features and trends of reforms in world health systems -- Overview of health systems in developed countries and areas -- The role of the government in the health service markets of developed countries and areas -- Basic drug administration policies in developed countries and areas -- Models and policies of healthcare cost containment in developed countries and areas -- National health service systems of representative countries -- Social health insurance systems of representative countries -- Commercial health insurance and medical savings account systems of representative countries -- Improved health systems in Hong Kong and Taiwan -- Definition of developing countries and challenges in health systems -- Comparison of healthcare and social security systems in BRICS countries -- Insights from health system reforms in developing countries -- Health systems in seven Asian countries -- Health systems in three African countries -- Health systems in four selected European countries -- Health systems in four American countries -- Afterword ; Feedback and thoughts on the Chinese version of world health systems ; Main content of the model ; Challenges for future research.