I ordered the Bettinger book whilst I was in Holland, and it was waiting for me when I got home. First impression, although it is still early days, but I am finding it somewhat lightweight compared to the book edited by Graham Holton. Yes, there are a lot of pretty coloured diagrams, but when it comes down to the technical aspects of why things are as they are, the explanations are less technical and seem to gloss over the specific details.
Maybe things will improve in later chapters, although having skimmed forward to read through some of the autosomal, Y-DNA and ethnicity topics, I'm not convinced. The Holton book seems a much better serious reference manual to me. I also prefer the way that it suggests further resources on specific topics within context throughout the book, whereas it seems that the Bettinger book just has a few pages listing additional resources at the back of the book.
As I say, first impressions which may change as I continue through it. But so far I much prefer the Holton book.
