Awesome campaign setting with strong world building elements. Great for heroic fantasy. Very fairly priced as well.

Swords of Kos Fantasy Campain setting is a great compilation of the entire Kos line. It takes what has been created before and puts it into a single comprehensive tome. It saves the reader the frustration of flipping between different files in search of information.

Everything is presented in a clean manner that makes reading easy. It is comprehensive enough to flesh out large portions of a world. Even better is that there is still enough room left for groups to create their own additions with ease.