The Genetic Genealogist Blaine Bettinger has written an e-book on how to interpret DNA testing results. The 28-page book takes the reader through four chapters covering what is and isn't genetic genealogy, how to interpret Y-DNA and mtDNA results, and the field of genetic genealogy in general. Bettinger felt the need to service his community of readers, since he gets many emails "asking questions about their newly-received DNA testing results. They are unsure about what the results mean, how to find more information, or what to do next."