I replaced books with my Kobo and iPad years ago, but replaced the iPad with a Surface since. I don't have any memory palace issues, but a bookshelf is a must.

I replaced books with my Kobo and iPad years ago, but replaced the iPad with a Surface since. I don't have any memory palace issues, but a bookshelf is a must. To solve my bookshelf issue I use Calibre and keep all of books, including technical manuals in it. I store all of the files and the Calibre database on a folder in DropBox. It suits me fine. I standardized on PDF and ePub files for maximum compatibility, but Calibre will also convert the files on the fly for me.