How to read a population pyramid- Start by checking it's birth rate. That is dependent on the bottom. At the bottom you can see ages 0-4, 5-9 etc and keeps moving upward. until maybe 100.So, if the bottom area is really broad, you can say that this country has a high birth rate. You can also write maybe-that there is enough work force to support the future of that country. Now, wherever the ages end- like when I said it may go up to 100, that is classified as the people of old age. So if this is broad- that means the country has an aged population. Whereas, if it is narrow, you can say that the country's average death rate is 100(if the pyramid numbers go upto 100).