fun fact: the weird tome is situated in between spellbook of light and spellbook of lordly might. I wonder what the spell would be called?

I think this is as much of a "bug" as the trap patterns, but hey, that was changed.

what I find wierd is that tracts seem to move around when un-ided, meaning if you are trying to read a spellbook with an un-ided tract/manual of bridgebuilding, you have to make sure it doesn't swap places with the book you want to read each time >_>

I've encountered that problem too. According to a prior bug report that bug was supposed to have been fixed in prerelease 1... either it was only assumed to be fixed, or the bug popped in again in one of the later prereleases.

The swapping of places between spellbooks has always been an issue for me, as I prefer wizards and usually get lots of spellbooks.
As for the identified and un-ided spellbooks - I think those should be in separate pools, i.e first identified books in alphabetical order, then un-ided, similarly in alphabetical order.
I guess the order could be affected by the scroll of amnesia if carelessly read, but other than that this would improve equipment management.

Must be a Spellbook of Listening ;)

Perhaps a Spellbook of Lobster Creation, which would allow a retired adventurer to indulge in gourmet dinners for the rest of his happy life.

Or a Spellbook of London Portal, the only known way of communication between the world of Ancardia and a remote dimension...

Spellbook of Lengthy Rumor. Its effects are also said to affect other dimensions.

Perhaps you mean the Spellbook of Lax Alphabetical sorting, considering how E comes before I :D

Oops. Make that a spellbook of Longstanding Rumor :)

Fixed. Unidentifed tomes are now always listed after identified ones.

Given that it's sent from the Ghost Librarian to the Mad Minstrel, I'd say it's a Book of Limericks.