Schneider's book is a fun read for folks interested in things ancient Mesopotamian. The book is brief but well organized. Helpful introductory material (tools for study and a summary of history) set the stage for a chapter by chapter discussion of significant areas related to the broad area of the ancient Mesopotamian religion. Key categories are dealt with in a concise and informative fashion that provides enough data to cover each area yet in a way that is easily grasped by those newer to the topic.
The uneven assessment of some areas is a minor flaw of the book. In her discussion of the Sacred Marriage Schneider notes the information gap between the 3rd and 1st millennia and raises a note of caution about conclusions that are based upon a seamless treatment of the materials. Yet, in her discussion of prophecy, an area far inferior to divination in ancient Mesopotamia, she does not raise the same warning about the seamless use of prophecy texts from Mari (18th century) with the prophecy texts from Neo-Assyria (8th century).
A strength of Schneider's book is her use of basic and accessible works, even for primary sources, that will allow readers to investigate more fully her major points. The book is informative, well balanced and enjoyable so highly recommended as Schneider clearly achieves her goal.