Experience allows your heroes to go up in level, and develop their primary and secondary skills.
Spell points are required to cast spells. The maximum amount of spell points is 10 times your Knowledge. It is occasionally possible to have more than your maximum spell points from special events or locations.
Travel points show how far your hero can move. The distance is determined by the type of terrain, roads, and the level of your logistics and pathfinding skills. Special locations, events and artifacts can also increase the number of travel points.