This seems to be a showcase of ShelfJoy’s functionality on the example of “Bowie’s 100 books” list, which apparently was supplied by his archivist for an exhibition David Bowie Is from a few years ago.
Hey, creator of ShelfJoy here. You explained it right :)
Some of your titles and descriptions are mismatched. For example, the description of the Tony Robbins book is actually the description for Money by Martin Amis. Much more likely Bowie would be reading Amis than Tony Robbins! The CJ Box title/description is also wrong.