you can find out one way or the other watching a video interview (done by Skype) with the author Paul Copan here.
The book, Is God a Moral Monster?: Making Sense of the Old Testament God (Baker 2011) is mainly written against the claims of the the New Atheists who have supposedly leveled the accusation that the God of the Old Testament is nothing but a bully, a murderer, and a cosmic child abuser, etc, etc. Apparently this viewpoint is even making inroads into the church? So, Copan suggests ways as to how are Christians to respond to such accusations. And how are they to reconcile the seemingly disconnected natures of God portrayed in the two Testaments?
Seems like a good book to pick up some time.
for a less positive view from a newly minted OT Scholar go here.