Discover the answers to your family history mysteries using the most cutting edge tool available. This plain-English guide is a one-stop resource for how to use DNA testing for genealogy. Inside, you'll find guidance on what DNA tests are available, plus the methodologies and pros and cons of the three major testing companies and advice on choosing the right test to answer your specific genealogy questions. And once you've taken a DNA test, this guide will demystify the often-overwhelming subject and explain how to interpret DNA test results, including how to understand ethnicity estimates and haplogroup designations, navigate suggested cousin matches, and use third-party tools like GEDmatch to further analyze your data. To give you a holistic view of genetic testing for ancestry, the book also discusses the ethics and future of genetic genealogy, as well as how adoptees and others who know little about their ancestry can especially benefit from DNA testing.