From the website of the Population Reference Bureau:
When were you born? How many brothers and sisters did you have? Where did your ancestors live? How long will you live?
The answers to such questions are the core of demography. While many people think of demography as a kind of dry social accounting—or as a key variable for marketing campaigns—demographer Joe McFalls claims that people develop a fascination with demography when they learn how it relates to their own lives and backgrounds. “Indeed,” he says, “if people are not interested in demographic phenomena, they are not interested in themselves.”
For full article, download:
Lively Introduction (PDF, 557 KB)
Current World Population
Net Growth During Your Visit