I have been searching around off and on. I found a HN thread for years ago too! It seems that people have favourites but there is nothing leading the charge. I

I have been searching around off and on. I found a HN thread for years ago too! It seems that people have favourites but there is nothing leading the charge. I know someone that has a barcode reader and wrote ee's own code to parse it for a database, even printing personal barcodes to handle repeats (sentimental value, different format). I think ISBNs sometimes are different soft vs hard, BUT ISBNs are new and sometimes get reused, plus the barcode might be for a category or "book/zine of series" and not a particular copy. I know Amazon, and thus goodreads, can now do search by cover - it is amazon, but it does avoid a lot of issues. Goodreads might be best for you just for phone and cover scanning. It is, however, slow. You can use shelves/tags for locations but it is ... slow. I think the best system would be a combo of cover scanning, cataloging your photo in the entry, and notes of signed/writen notes. BUT for location tying it to a barcode reader that can scan the new shelf's barcode and the book, but that requires personally barcoding books (please use removable stickers!) and is a bit over involved. Personally, the weird case I really want and am not sure how to peice together is a way to pull good spine photos/digitals. I know mu books by spine so I'd love to see if a book catalog could have a spine database and be used to make a virtual library. edit: Found the thread. Last I read it did not have anything particularly good, but a few workable options. https://news.ycombinator.com/item?id=19817219 https://news.ycombinator.com/item?id=19817219