There's a faculty member at my university who's starting a course on Japanese anime soundtracks (I think - I'm getting most of this info thirdhand). For various reasons, he's having us buy the associated movies and shows rather than the soundtracks themselves. When I heard this book was coming out, I told his liaison librarian that she should suggest it to him, and he agreed that we should purchase it.
And now it's in my hands. It's a skinny little thing, and I might decide to read it myself at some point in the future.