I would have to say that this book is a bit dated and missing out on certain things. Although it mainly looks at the main players of the Gods and Goddess’ along with the tales of Giants and Dwarfs as well.
The interesting thing about this book would be more for people researching, and by this I do mean basic research, on the Norse Gods. My one problem with this is the Loki section where he is regarded as being ‘evil’ and yet he has done good as well, not to mention he is the balance for the gods, for good cannot come to light without darkness being around.
There are plenty of books on this subject and deserve a read as well, but if you want something brief and to learn more about how the Norse Gods ‘fell’ if you like to the Christian God this is a pretty good starting point to get basic info from.