*Are you so sure?
I don't have bookshelves any more grin - anything with my name on the spine vanishes cos people always want a free copy, and the state of the rest of them beggars belief - coffee stains, biro marks, cat paw prints, flyleaf ripped out to use as shopping list, etc. A fringe of postits for reference is, frankly, showing off.
As I type Ezra Pound and his mates are holding up the door of the cupboard under the sink. His other mates got rehomed thanks to the communal book swap in our block.
EM Forster's most deliberately rude remark about a pompous colleague he didn't like 'He has a familiarity with the outside of books*
Yeah, given this I'm sure. 'Bookshelves' should just not be interpreted literally. It should include bookfloor, bookstacks, bookblocks and so on.
For a while, I have been suspicious that we have a celebrity amongst us (and I don't mean Ollie, Capn'V or TC) btw ... more, as they used to say in the olden days, an 'authoress'.