With gratitude to Allah SWT, for His abundant grace and guidance, the writing of the book entitled Population Science: Global and Local Perspectives can be completed. This book discusses the introduction to population science, population theories, global population, reproductive health and disaster families, population mobility and urbanization in the Indonesian archipelago, as well as population policies and planning.

Population science, commonly referred to as demography, is a scientific discipline that examines the size, structure, distribution, and dynamics of human populations. It focuses on how populations change over time through the processes of fertility, mortality, and migration, as well as how these demographic processes influence social, economic, political, and environmental systems (Weeks, 2021). As societies continue to undergo rapid transformations driven by globalization, technological development, and environmental change, understanding population dynamics has become
increasingly important for policy formulation and sustainable development planning.