One thing that mildly bugs my #ADHDbrain:
It's easy to get #ebooks from #ProjectGutenberg and stick them in #GooglePlayBooks, all right? BUT for a lot of old PG releases (old EPUB with no images), the Google Play Books just bugged out. Wrong metadata, grayed out or wrong cover image. So reading them was a real annoyance. Can't find books within this mess. Worst part is, Google Play Books won't let you edit the details. (...so all of my PDFs have correct cover art but just the filename.)
I just downloaded a few of the PG EPUB3 books - this seems work better, as at least these show the generic covers created by PG which are better than nothing.
Also I just deleted a book that has stuck in my Google Play Books catalogue this way for, like, a decade. (Memoirs of Extraordinary Popular Delusions and the Madness of Crowds) It apparently counted as three books. It just sat there in my library. Darkening my door. Bugging me. So today I redownloaded the EPUB3 version and stuck it there and whoop! works now kthxbye