Housing quality is key to the public's health. Translating that simple axiom into action is the topic of this book. In the 30 years since the first edition was published, the nation's understanding of how specific hous- ing conditions are related to disease and injury has matured and deepened. This new edition will enable pub- lic health and housing professionals to grasp our shared responsibility to ensure that our housing stock is safe, decent, affordable, and healthy for our citizens, especially those who are particularly vulnerable and who spend more time in the home, such as children and the elderly.