Like, not just a collection of books but like an entirely self / family written collection that was not published? Is that even a thing?
Is it generally OK to do the honor of reading it yourself first if in a language you understand? (not fishing for opinion, sorry for riding the rules so closely with that last bit though)
Mods: If I need to edit that last question out, please just ask so I don't have to resubmit.
I'd actually assume that in a well funded "dig", it would be at least be photographed if not scanned in multiple wavelengths of light. (and possibly x-rayed)
Then, whoever is in the room would begin reading and maybe working on transcription / translation if necessary?