I picked this book up because of the publisher, SaltRiver. They also published the best analysis of the Harry Potter series I have ever read ("Finding God in Harry Potter"). So I picked it up, having read Northern Lights (retitled "The Golden Compass" later on) when I was younger, and having seen the recent film adaptation.
The book is a collection of short meditations on certain themes found in Pullman's His Dark Materials from a Christian perspective. They tend to be good, but very, very basic. For instance, one of the mediatations is on "Family," and they talk about all the broken family relationships in the His Dark Materials books, and then talk about how God is our Father and we are his family.
In terms of literary criticism, the book does not provide any overview or summary of the story or Pullman's world, and so in that way assumes you have *some* knowledge of the His Dark Materials universe, while the writing style makes it clear they do not expect you to have any knowledge of the story, which is odd.
In addition, the book does not really explore Pullman's universe and analize it in any kind of depth. Mostly they simply use bits and pieces of it as springboards for thematic discussion. In the way of simply describing and dealing in the universe as is, Finding God in Harry Potter does a much better job of it.
I do recommend this book, though. Bruner and Ware reveal a very important fact about the His Dark Materials trilogy, which is that atheist Pullman *assumes* a Christian world, a world where free grace, love, self-sacrifice, nobility, and honor hold sway, in order to attack that world. No matter what atheist Pullman does, he is revealing the God he doesn't believe in. That is one of the best values of this book. Its discussions on the "Authority" (aka God) and the "Magisterium" (aka the Church) are quite good.
One last thing I enjoyed about the book. It does take Pullman to task, but it also recognizes the value of storytelling and Pullman's talents as an artist, so it is not fully negative, nor fully positive. There is little rhetorical fire-and-brimstone, and simply a reasoned, balanced analysis.