If you are interested in genetic genealogy, I highly recommend reading Reunion – A Search for Ancestors by Ryan Littrell. [Amazon: Paperback $9.99 & Kindle $4.99]
Ryan Littrell has the gift of storytelling and puts it to good use telling the story of his search for his Scottish roots. But this is no normal family history. While Ryan details his efforts searching for his MacDonald ancestors, he also tells the story of the MacDonald clan. One chapter tells his adventures in research in such a way that I was cheering each new success while the next chapter brings the history of the clan another step closer. The chapters alternate forward and backward until they reach the reunion – making the connection to the ancestor who migrated to America.
In addition to writing a fascinating story, Ryan has provided one of the best descriptions I’ve seen on how to use DNA results in an ancestor search.