Books

Epidemiology 
Book chapter by M. Gwinn, M. J. Khoury - Genetics in Practice (2001)

Epidemiology for the Uninitiated - 4th ed.
Online textbook by Coggon, Rose and Barker (1997)

Genes and Disease
Online textbook from the National Center for Biotechnology Information.

Genetic Epidemiology
Book chapter excerpted from Modern Epidemiology, Second Edition.

Genetics Basis for Medicine in the 21st Century: An introduction to genes, diseases and genetic tests
An online book by Achim Regenauer and Jorg Schmidtke, Munich Reinsurance Comapany (1998).

GeneticBasics
An online book guide to genetics, genomics and biotechnology from the US National Institute of General Medical Sciences.

Genetics and Public Health in the 21st Century: Using Genetic Information to Improve Health and Prevent Disease 
Edited by MJ Khoury, W Burke, and E Thomson, Oxford University Press (2000).

Genetics and Your Practice
3rd edition project of the Washington State Department of Health, March of Dimes Birth Defects Foundation, Swedish Medical Center, Seattle, and medical geneticists and genetic counselors from throughout the United States.

  Human Genome Epidemiology: A Scientific Foundation for Using Genetic Information to Improve Health and Prevent Disease.
Edited by Muin J. Khoury, Julian Little, and Wylie Burke. (2003)

Integrating Genomics into Public Health Policy and Practice
Book chapter by Laura M. Beskow, Marta Gwinn, and Mark A. Rothstein.  In Goodman RA, et al (eds), Law in Public Health Practice. New York: Oxford University Press, 2002. pp.245-61.

An Introduction to Genetic Analysis
An online book by Anthony J.F. Griffiths, Jeffrey H. Miller, David T. Suzuki, Richard C. Lewontin and William M. Gelbart, W. H. Freeman and Company (2000).

Nature Encyclopedia of the Human Genome (Nature EHG) 
Reference work devoted to the scientific basis and ethical, philosophical, and commercial ramifications of genome research.

What's a Genome?
Book by Sarah E. DeWeerdt (Celera Genomics)