I liked this as an overall review of different low-carb eating plans out there.
It is old, but still seemed pretty relevant and in fact contained a lot of the research that is JUST starting to make headlines lately, about how we've been completely duped by the whole low-fat, high-starch bullsh*t. It does dismiss Paleo as "too restrictive" and doesn't give it much credence, and of course was written before Primal became the newer thing.
Be warned it is about half cookbook and really ought to have been in the cookbook section...