A demographer is a social scientist who studies populations, focusing on their size, distribution, and trends over time. They analyze data related to birth rates, death rates, migration patterns, and aging populations. This information helps governments and organizations make informed decisions about resources, healthcare, and urban planning. Demographers often use statistical methods and tools to interpret data and create forecasts. Their work is essential for understanding societal changes and challenges, such as those related to urbanization, public health, and economic development. By examining population dynamics, demographers contribute to shaping policies that affect communities and nations.