You will find the book very helpful.
My way to describe it is that it is not brand specific, as most books. To me, it seems to lean towards AB.
As far as a book specifically covering AB, I haven't seen one, but there could be some out there.
The plcs.net book is an excellant place to start, and if you did a search, you will find many of the "regulars" here learned plc's with it.
regards.....casey