Going over: Population

Here you have a link to go over the topic we are studying now. It will be useful to study.

Population: a review
Here something specific about population pyramids in MEDCs, LEDCs and NICs:

http://geographyfieldwork.com/PopulationStructure.htm

And Glossary about this topic:

http://geographyfieldwork.com/GeographyVocabularyGCSEPopulation.htm