Quick post: I am in the middle of an historical novel binge and strongly recommend the following.
Genghis: Birth of an Empire
Genghis: Lords of the Bow
Genghis: Bones of the Hills
Terrific stuff and if you want a great biography on Khan, read Genghis Khan, The Making of the Modern World
Finally - Agincourt, the tale of Henry V's epic battle as told by an English bowman.