A printed book is an object over which no third party has agency once in your possession. It’s protected (in the US, at least) by first sale doctrine. Digital books, not to the same degree. Amazon, for example, famously deleted editions of “1984” from everyone’s Kindles. Simultaneously, today (2019), courts in France are challenging the general inability to resell digital goods.
Source: Stab a Book, the Book Won’t Die — by Craig Mod