Re: 62 PAGEs of books
There are "Collections" on Kindle and Kobo.
Sadly not hierarchical. But a book can be in more than one (say Westerns and Romance).
It took me a while to figure out how to have a book in a collection on Calibre (best way to organise) automatically be in that on Kindle/Kobo. You need to make an extra column and change settings on Calibre.
Biting the hand that feeds IT
