Many changes have been made in this book from the last edition. I hope it will be helpful in providing a good review of public health and preventive medicine. I also hope you will appreciate how applicable this field is in everyday clinical practice (even biostatistics principles!) and what an important impact prevention can have on the health of a population. Many thanks to the medical students, Lucy Chie, Megan Schwarzman, and Natalie Holt, for their thoughtful comments.
