This is an interesting cookbook, but not very extensive or thorough - only 60 recipes in total, representing three unique cultures!
However, I found the recipes from Latvia (my heritage) to be a bit odd. My Latvian family has lots of excellent traditional cooks, and I grew up eating Latvian food all the time, cook Latvian food myself, but I have never even heard of some of these dishes.
Not to say there's anything wrong with the recipes, but I would suggest that they might not exactly be the typical Latvian food one would find on the table in a traditional Latvian household. I would have proably picked very different foods to represent what is traditional Latvian cuisine.
That being said, it makes me wonder about how representative or typical the recipes form the other countries might be, but just the same, nice pictures and an interesting overview of Baltic cuisine.