WRITTEN IN PIXELS The Kindle 2.

Please, they’re overlooking the really important concern: How will the Kindle affect literary snobbism? If you have 1,500 books on your Kindle — that’s how many it holds — does that make you any more or less of a bibliophile than if you have the same 1,500 books displayed on a shelf? (For the sake of argument, let’s assume that you’ve actually read a couple of them.)

The practice of judging people by the covers of their books is old and time-honored. And the Kindle, which looks kind of like a giant white calculator, is the technology equivalent of a plain brown wrapper. If people jettison their book collections or stop buying new volumes, it will grow increasingly hard to form snap opinions about them by wandering casually into their living rooms.

How do you judge people by the covers of the books they read?

PAGE TURNER With a book on the subway, you are what you read.