I used to frequent old book stores, one in particular.
It was on 2 floors, with thousands of books stacked in unlikely,
rickety pillars.the futher down you went, the older the books got.
until you found really old leather bound tomes and huge books that were a challenge to lift (tonotomes)
or really old tomes with green covers (toxitomes)
there was a period when book makers used arsenic as
part of the process. the University of Southern Denmark
recently removed 3 such toxitomes from its library.
book bombs (terrortomes) crop up from time to time.
Sometimes books have been impregnated with psychoactive
substances by cults (psychotomes)
Who knows what you might find in an old bookshop.
I use an Ereader these days..