Can this handle blueprint books, or is that completely impossible?

It's on my research list, will probably check tomorrow if it's possible or not. Stay tuned =)

So, I can access blueprint book data.
I'm still a bit baffled how one would want blueprint books accessable by my mod. I always thought (and for me it IS that way) that the mod makes any blueprint books absolete ^^
Can you give me an example of how you wish my mod would handle blueprint books?

Not OP (and not yet actually played with this mod, just interested in all things blueprinty), but I would like to be able to export a whole book as a single string to share, with all the contained prints (and labels!) included all in one. This way I can publish a large build (like my CPU) in sections (it's a modular design anyway...) that won't slow down the game, and bind them together into a book for publication.

Also, simpler ways to copy books would be handy in testing/developing/playing with the deployer chest from the recursive blueprints mod! (shameless plug...)

Maybe books display in the list with [brackets] or with a pagecount[5]?

Probably best to do the actual import/export as patch sent upstream to blueprintstrings though...

I really don't know if I want to put a lot of effort into blueprint book support. That is mainly because they don't offer even a single advantage to me when playing with my mod. That is really just because my mod basically is a huge blueprint book... just... nicer ^^
I will have to see what's happening in the future.

I was planning to try to mod it in to blueprintstrings eventually (if Dave doesn't do it first...), which should bring it to all the different bp managers :)

And you can't do things like this without real books ;)