Source
From the release:
Kingdom of Heaven is the third source book for Clash of Empires™, charting the era of the Crusades. The 136 page hardback book is split into three parts each focussing on a specific time period and series of battles and combatants, plus superbly painted miniatures, covering more than 40 army lists including variants.
The first 150 copies sold will receive a free Saladin miniature