An easy-to-use, straightforward guide for British family historians looking to trace their ancestry using DNA testing. DNA research is one of the most rapidly advancing areas in modern science, and the practical use of DNA testing in genealogy is one of its most exciting applications. Yet there is no recent British publication in this field. That is why this accessible, wide-ranging introduction is so valuable. It offers a clear, practical way into the subject, explaining the scientific discoveries and techniques and illustrating with case studies how it can be used by genealogists to gain an insight into their ancestry. The subject is complex and perhaps difficult for traditional genealogists to understand but, with the aid of this book, novices who are keen to take advantage of it will be able to interpret test results and use them to help answer genealogical questions which cannot be answered by documentary evidence alone. It will also appeal to those with some experience in the field because it places the practical application of genetic genealogy within a wider context, highlighting its role as a genealogical tool and suggesting how it can be made more effective.