From the Publisher's Website:
100 Kingdoms presents 100, individual fantasy countries for your use in your own fantasy-based games.
* Great for worldbuilding.
* Great for game inspiration.
* Great for adding new twists to existing gameworlds.
* Good accompaniment for 100 Fantasy Adventure Seeds.
Each 'Kingdom' is provided for with a single page description consisting of an overview, an examination of the rulership, the general geography and a scattering of adventure seeds to get you started.
This is a generic product suitable for most fantasy games.