Episode 91 of the Citations Needed podcast also discusses the use of the term middle class, if you as interested
Biden used his tributes to the dead to build and cement bridges across the partisan divide, whether he was eulogizing friends such as Republican Sen. John McCain (Ariz.) or notorious leaders such as Sen. Strom Thurmond (S.C.), an avowed segregationist
I have a boox leaf 2 and I recommend it if you don’t want to be tied into any ecosystem. It uses android, so you can just install a sync app like Syncthing and copy ebooks over to it. I’ve pirated every book I’ve read on it