This is an excellent book by a talented scholar. Margaret Barker provides an insightful look of Israel's Second God in this impressive, small book.
One of my favourite sections is her discussion of Deut. 6:4 (the "Shema") and 1 Corinthians 8, where she argues Paul, and contemporaries, understood the Shema as a verse supporting the unity of Yahweh (henotheism), as opposed to the Trinitarian eisegetical interpretation by mainstream Christians or the ultra-strict monotheistic interpretaion in modern Judaism. As a student of theology in Ireland, and an active Latter-day Saint, I have a great appreciation for this book.