Your author decided to write this book about Genome Mapping after attending a Dinner Lecture for Caltech Alumni living in the Santa Barbara County area of Mid-Coast California Dr David Barker, BS 1963 Caltech & PhD in Biochemistry from Brandeis University, gave a slide presentation on DNA sequencing and what it can tell you. In my quest for more knowledge about this exciting area of biochemistry, I sought more information about Genome Mapping and Entire DNA Sequencing from the Google and Yahoo search engines. As is common in Internet Research, I found a great deal of research was taking place worldwide. It was my objective to summarize this research in this book so my readers could learn what is happening and where to find more information about this important area of Biochemistry. One possibility is modifying your DNA to reduce susceptibility to certain diseases..perhaps we will be able to reduce our risk of cancer. One of my good friends died recently of Prostate Cancer, so my interest in combating Cancer has been intensified.