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A really interesting read for someone who has never read on the topic of Genealogy. It is a quick read. You can probably finish it in one sitting really easily. Author talks about all the basic stuff you need to know about DNA and then a little chapter on how DNA plays out in inheritance of characteristics. And then we move on to the subject of Genealogy and health ailments. My only peeve is that it is too short. I would’ve wanted to read more from it and know more about the subject.