This is why I hold publishers in such low esteem. I could understand why they might restrict readership of a library-owned ebook to one reader at a time - it replicates the conditions of a physical book. But that wasn't enough. This story reports on a publisher of popular books, Hachette books, will now require that the license be repurchased every two years. So a library can never build a collection over time, limiting the selection it can offer, and reducing the service it can offer to the public. This is a video, but there are closed captions so you can watch/read it without disturbing anyone.