The first thought that flashed through my mind when I read the title was, silverfish. And yes! The article does catgorise them as 'bookworms' - Lepisma saccharina. What a wonderful link, wwh. It was a thoroughly enjoyable read. Thank you ever so much.

Personally, the more dog-eared, the more musty smelling, the more pock marked by worms (as long as they restrict themselves to the margins!), the more scrumptious the read.
The article also mentioned borer-damage in India and Australia. I always thought borers were a kind of insect that bored through wood and furniture. I didn't know they attacked books too. I have seen furniture ravaged by borers and if that's their level of chomping competence with wood, it should take them just a day to go through a tome!

Learnt a new word too - Incunable

From NODE:
incunabulum (also incunable)
noun (pl. incunabula ): an early printed book, especially one printed before 1501.
n (incunabula) archaic the early stages of the development of something.

Thanks again, Dr.Bill. In the short time that I have been here, I have learnt a lot from you.