They can be read on apps like Books (iOS), Google Play Books, or Calibre on desktop [1].
These epubs typically contain A Song of Ice and Fire (ASOIAF) novels, novellas ( Tales of Dunk and Egg ), and sometimes auxiliary materials like maps, character lists, or interviews [1]. JDT GRRM epub
These are usually created for offline reading, easier navigation, or consolidating the series ( Game of Thrones book series) into a single digital volume rather than separate files [1]. How to Find and Use These Files: They can be read on apps like Books