This could be a very interesting book but if suffers from a few problems. Firstly lack of attention to detail. For example, South America is not in the Northern Hemisphere. Secondly, it is unclear why the tales of some sealers are told and others are not. What was the rationale for picking these specific stories? Finally, the lack of references makes the credibility of much of the information doubtful. All these problems can be easily fixed.
(review of free book)