Glitches
Book does not display pages beyond the first chapter (this is a full book, not a free sample). You just get the little spinning icon in the middle of a blank page, forever. In this state, sometimes you can still flip pages (all blank beyond 1st chapter) or tap to get page controls, and sometimes you cant, in which case the only remedy is to delete the app and reinstall.
Random110815 about
Google Play Books - Books & Comics, v3.1.1