And s ome books don't lend themselves to highlighting quite as much, which is why many of even Amazon's bestsellers don't appear on the lists.īut it's also true that some books get bought and end up on bestseller lists, but aren't actually read - whereas these lists are a terrific record of what we might nowadays call reader engagement. There are some limitations to the data: it's only for people who read on Kindles, and use them for highlighting. The data is extremely heavily skewed towards American readers ( Amazon isn't saying whether they include international data, but it looks like they don't). The resulting most-highlighted lists are a fascinating record of reading as a whole. The passages you highlight are all collected in one place, accessible either on the reader or a computer.īut Amazon also collects data on what its readers highlight most. When you read on a Kindle, you can highlight passages, the same way you might highlight text in a physical book. Highlights reveal not just what books are read, but what part of books are read Conventionally, the most common way of gauging the most popular books in America has been looking at the New York Times' bestsellers list.īut as we shift from reading on paper to screens, there's an interesting new option: Amazon's lists of the most-highlighted passages and most-highlighted books on Kindles around the world.