The Family Tree Guide to DNA Testing and Genetic Genealogy and Genetic Genealogy in Practice, both by Blaine Bettinger, both published in late 2016. If you are new to DNA testing start here. If you've been involved with some testing, read them as well. There is some duplication between the two, but I recommend both. Start with the first. Here are online reviews for The Family Tree Guide..., and Genetic Genealogy...
A bare bones synopsis of the absolute basics of Genetic Genealogy in a short blog post by Emma Young on the Family Search blog. An Introduction to Genetic Genealogy.
What is a STR (Short Tandem Repeat)? How are they used in Genetic Genealogy?
What is a SNP (Single-Nucleotide Polymorphism)? A bit more on SNPs from ISOGG. And more on Y-SNP Testing from ISOGG. And while you are there, don't be shy about exploring the entire ISOGG website. There are a lot of links, sources and material for you to investigate whatever aspect of Genetic Genealogy interests you.
Here is an older paper (PDF) from 2008 by Blaine Bettinger, "Interpreting The Results of My Genetic Genealogy Test, Now What?"
Thinking About a BigY Test at Family Tree DNA?, Blaine Bettinger, August 1, 2017. Some background and some basics on how to use your Big-Y test results. NEW and very relevant for our current Big-Y Test participants.
BigY at the Family Tree DNA Learning Center. Basics on the test with FAQs and a link to the BigY white paper, "Introduction to the BigY," from 2014. And a video on YouTube from FTDNA titled, "Getting to Know Your Big-Y Results."
How Y-DNA Can Help Your One Name Study Project, video by Maurice Gleason.
Some background on the YFull service from the Cruwys News website.
Family Tree DNA's Book and Video recommendations. This page may be a little dated and the two books by Blaine Bettinger mentioned above, and not on this list, is the place to start, but there may be specific topics of individual interest here to some. For those who want to take all of this even further here is FTDNA's Library of Scientific Papers.
This is just a start, and perhaps in time as new sites or sources appear I'll add them to this post. I also invite anyone who has recommendations (books, websites, videos) of their own to use the Comments option for the post as a vehicle to share them with others. And here is something I was told many years ago - Pick a subject, any subject, and spend one hour a day reading and learning about it. In one year you'll be an expert on that subject. I'll add to that something a bit more specific - what you get out of your investment in your DNA testing is going to correlate directly to just how much effort you put into learning about it.
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