Collector's manual?

I have stumbled twice on the reference to BB. I bought the Griswold and Wagner BB and was disappointed in the lack of detail. I've learned MUCH MORE on this forum and the articles. Does BB refer possibly to Blue Book rather than the red book mostly about Wagner? Or is this an entirely different and more informative resource book? If it is I surely would like to have one. Thanks on any information for any resource book. I think if I don't watch it, I'll turn into a collector of poor choices rather than amazing finds! The downfall of a newbie to CI.:roll:

BB = Blue Book = Book of Griswold & Wagner (blue cover)
RB = Red Book = Book of Wagner & Griswold (red cover)

Both by the same co-authors. Each concentrates more on the first maker in their respective titles. They provide some manufacturer history and some guidance on identification and values (at the time of publishing), but there is far too much ground to cover for them (or any book) to be a comprehensive be-all to end-all cast iron collecting resource.