She really doesn’t care about it

Actually, shes dream that all her friends were books and that Equestria itself was the largest library on their planet.
 
Oh, who are any of us trying to kid? This is obviously the natural nesting behavior of the elusive BookHorse, who’s known to inspect each and every book individually even going so far as to research the origin of the book before tasting, sniffing and even cuddling each interviewee. After this, BookHorse and her subject often have a deep philosophical discussion often leading to a Scholastic debate over the indexing methods of modern Equestrian libraries.