Bought an oldish book by post about a month ago; but due to work pressure I only got around to looking at it today. Imagine my delight when I discovered it had bookworm damage. I don't know whether the insects are still active or have flown the nest, but as a precaution I've carefully wrapped up the book and put it in the freezer, which hopefully will kill any that are left. Just wondering if anybody had any other tips / tricks for annihilating the little swine? I've read that 3 weeks of freezing should slay them -- anyone know any different?