Books:

1. Rothman, K. J., Greenland, S., & Lash, T. L. (2008). Modern Epidemiology, 3rd Edition. Philadelphia, PA: Lippincott, Williams & Wilkins
2. Gordis, L. (2009). Epidemiology. Philadelphia: Elsevier/Saunders.
3. Porta, M. (2014). A dictionary of epidemiology, 5th edition. Oxford, New York: Oxford University Press. Available at: http://www.irea.ir/files/site1/pages/dictionary.pdf

Online Videos and Other Resources

1. Principles of Epidemiology in Public Health Practice, Third Edition. An Introduction to Applied Epidemiology and Biostatistics. Available at: http://www.cdc.gov/ophss/csels/dsepd/ss1978/lesson3/section5.html
2. Incidence and Prevalence:
3. The Relationship between Incidence and Prevalence:
4. How to Interpret an Use a Relative Risk and an Odds Ratio: