If you have read Smith's "Early History of God" and been intrigued by his conception of the development of our notion of God during the Biblical period, "The Origins Of Monotheism" delivers a significantly more detailed analysis of the ancient Bronze Age texts from Ugarit and their influence on the culture of ancient Palestine in general, and Biblical texts in particular. Mr. Smith examines conceptions of the divine family and council of the gods, more general notions of ancient aspects of divinity, and the roles of various divinity. Especially insightful is his critique of James Frazier's category of "dying and rising" gods in the Near East. In his analysis of Isaiah, he gives considerable background into Mesopotamian views on the divinity of statues of gods, whithout prejudice. There is a lot more than I can list here in this book, but if you're interested in how the idea of one, all-powerful god came about, this is really essential reading.