Doorstoppers refer to books with a high page count, often around 500–1000+ pages. Basically books that are physically heavy and thick enough to act as an actual doorstopper. As someone who struggled to read books I could’ve never imagined myself going through one of these “doorstoppers”, let alone finishing a series of five such books. In case you didn’t read it in the title I’m of course talking about the Stormlight Archive series by Brandon Sanderson.