Concepts like life expectancy, poverty, and the demographic transition seem easy and obvious. But there's actually some nuance to them. This book is an easy introduction to the use of these traditional measures, indicators and models of population health. It's ideal for use by students, researchers, policy makers, NGOs, and funders. Raywat Deonandan holds a PhD in Epidemiology & Biostatistics and is a faculty member of the Interdisciplinary School of Health Sciences at the University of Ottawa. He is a multi-award winning writer, educator, and scientist, as well as a well published scholar.