Drew brings back Diahan Southard to Genealogy Connection in order to discuss Diahan's new book, Your DNA Guide: the Book. Diahan explains how the book is structured and outlines the 4 basic DNA research concepts that have made her own work successful. More information about the book can be found at https://www.yourdnaguide.com/your-dna-guide-the-book Diahan's previous interview can be found in Genealogy Connection #047: http://genealogyguys.com/genealogy-connection-047-diahan-southard-dna-expert-speaker-and-writer