Get DNA Answers: Your DNA Guide—the Book

With our ultimate DNA manual, you’ll learn how to to discover who you are and where you’re from using your DNA test results. 

Find relatives. Figure out who your DNA matches are. Identify unknown ancestors. Your DNA Guide—the Book takes you step-by-step through the various ways of using DNA to answer questions about your origins. And it’s all in plain English! 

DNA has the power to help us discover who we are and where we come from. But using DNA to explore these questions can be tricky, frustrating and even confusing.

Your DNA Guide–the Book is your solution for learning to make confident DNA discoveries! It delivers powerful, plain-English, step-by-step paths for your specific DNA questions. Curious about how you are related to your DNA matches? Go to page 40. Learn how to discover who your 2X great grandmother is on page 36. 

Throughout the Book, you can check your progress and get new guidance. Are your matches unresponsive? We’ve got ideas. Did you just realize your great-grandparents are first cousins? We’ll help you figure out how that affects your research. (It does.) Along the way, you’ll learn new terminology, strategies and tools as you need them.

With the self-guided, step-by-step Book in hand, you can start making DNA discoveries more quickly and efficiently. You’ll build confidence that you are doing things accurately. And you can return to the Book whenever you have a new question: just follow a new path.

Your DNA Guide–the Book empowers you to make discoveries about your family history. Knowing your family history can help build more resilience, self-confidence and a stronger sense of place and security–for yourself and your relatives. And everyone could use some of that! 

About the author

Diahan Southard is a globally-renowned genetic genealogy educator who has helped thousands of people use DNA. She has poured 20 years of experience into creating this self-guiding resource that can help everyone–but still customizes each person’s discovery path to meet their needs.


Expert praise for Your DNA Guide—the Book:

[Diahan’s] friendly, familiar tone could convince anyone that they can figure out this whole “DNA thing,” and with Southard’s clear, step-by-step instructions, they can. – -Mary Kircher Roddy, FGS Magazine

“It’s definitely not a ‘big overview of DNA testing’ book, but instead a ‘let’s get down and dirty and solve a brickwall problem’ book. And we definitely need a book like this.” – Drew Smith, The Genealogy Guys Podcast and Genealogy Connection Podcast

“Diahan Southard is…funny and down to earth. Her presentations are always filled with color and graphics and explain the sometimes overwhelming topic in a simple and easy way to understand. She’s put her style into her first book on DNA.”

This book is unique. My first thought was this is just like the choose your own adventure books I used to read as a kid. It’s almost like having Diahan there to hold your hand while you work your way through your matches and find your family!” – Cheri Hudson Passey, Carolina Girl Genealogy

Print edition $39.99 USD

The hands-on, mark-it-up-with-sticky-notes-and-highlighters print edition

Shipping is only available in the U.S. and is free

Customer Reviews

Based on 21 reviews
Cheryl Carlson
Your DNA Guide--the Book

Easy to read and comprehend. With the book, I can now mark-up pages for easy reference and follow-up.

So glad you're enjoying the book!

Kenneth Pratt

I believe it helped me locate a best match for the Y chromosome. Hoping I can get one of them to take the Y-DNA test at

Isabelle Wells
Your DNA Guide - the Book

A very useful book. I can make notes on various pages, easily re-read marked areas, and can easily refer to a specific section for trying to identify a brick wall. It is helping me solve several question I have had.

Joy Durrett
Love the book

I love the book Your DNA Guide. It has a lot of helpful suggestions.

Karyl Heiden

Your DNA Guide -- the Book

Ebook version (PDF) $16.99 USD

Portable, accessible from anywhere, with clickable links to navigate in the book

Available to everyone, including outside the United States

Customer Reviews

Based on 22 reviews
Awesome Guide

If your family does not have endogamy like mine where a cluster covers an entire page than this is perfect for you 🙂 I have helped 13 other people solve their family tree mysteries used the steps in this book. Hands down it is amazing 🙂

LaVera Rose
Your DNA Guide the eBook v7

Your book has inspired me to tackle a brick wall I have tried to knock down for 30 years. It offers good information in a readable text. In fact I learned how to expand my dna searches in Ancestry which was a great help!

Ellen Forderer
Fabulous Speaker, Writer, Teacher

After hearing you at Rootstech; I couldn't wait to get home and dig into my DNA. I have the book.
The book has given me the ability to go through a few of my "Brick Walls" I love your helpful hints in the newsletter. Am following you online and learning so much. Thank you for sharing your knowledge with others. Ellen from North Dakota

Rick Aindow
Still reading!

Still reading and learning lots!

Jeanne Breault
Your DNA Guide - ebook

I have not finished the book that is why I didn't give it 5 stars. I am trying to work through the process.