Thanks @alberto! Division of knowledge books into PAPER books & eBooks is inherited from pre-hyperconnected era. Some publishers are starting to understand that*, but the old-timer authors & publishers are still ‘gate-keepers’**, just because they DON’T UNDERSTAND what ‘digital era’ means 
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Therefore we need Dutch-like* use cases / to break the legacy (thanks to COVID-19 also); I am trying to persuade Cities-as-MyData-Operators in Finland: Sign Up | LinkedIn
I also explain at slide 9***, that Pareto rule is not working for Long Tail books (Long Tail DOUBLES sales&loans of books).
And the most important is that we’ve sold the issue of royalties, by providing each PHYSICAL book’s loan with THE digital interface, UpCode: a book is send to be printed on-demand via this MyData-approach-conform FINNISH 2D-code (UpCodeworld.com) of book’s UNIQUE ISBN’s token.
The issue: it’s hard to explain how it works to thousands publishers and millions authors The smartest (Finnish) librarians understand though: see slide 13***
*watch 2 min., from 38:00, Dutch publisher refers to the ‘hold’ bestsellers scheme, shown at 30:00 of this video Jesper Klein: Building digital libraries for all - Kirjastokaista
**“The other problem with the AG’s argument is that it assumes every ebook rental from a library represents a lost sale. This is simply untrue.” https://www.extremetech.com/mobile/284988-the-authors-guild-declares-war-on-digital-library-lending-libraries
***IndiviDUAL books presentation - Google Präsentationen
https://twitter.com/celia_gov/status/1105424312364871680?s=09 Retail means excessive costs for books, though eBooks are less costly by-design than paper books. It means that eBooks distribution is seriously flawed. Built for pre-digitalized society, eBooks business models need re-design for hyper-connected era.
https://www.fastcompany.com/90404633/battle-for-the-future-e-books-at-the-local-library