Discover the answers to your family history mysteries using the most cutting edge tool available. This plain-English guide (newly updated and expanded to include the latest DNA developments) will teach you what DNA tests are available; the pros and cons of the major testing companies; and how to choose the right test to answer your specific genealogy questions.  And once you've taken a DNA test, this guide will help you use your often-overwhelming results, with tips for understanding ethnicity estimates, navigating suggested cousin matches, and using third-party tools like GED match to further analyze your data. The book features:  Colorful diagrams and expert definitions that explain key DNA terms and concepts such as haplogroups and DNA inheritance patterns;  Detailed guides to each of the major kinds of DNA tests and tips for selecting the DNA test that can best help you solve your family mysteries, with case studies; Information about third-party tools you can use to more thoroughly analyze your test results once you've received them; Test comparison guides and research forms to help you select the most appropriate DNA test and organize your results; and Insights into how adoptees and others who know little about their ancestry can benefit from DNA testing. Whether you've just heard of DNA testing or you've tested at all three major companies, this guide will give you the tools you need to unpuzzle your DNA and discover what it can tell you about your family tree.