STEVE INSKEEP, host:
Good morning. I'm Steve Inskeep.
Historians site 1952 as a year that America reached a media watershed. That year, more Americans watched television in the evenings than listened to the radio. Maybe historians will mark 2011 as a similar kind of year for books. The giant retailer Amazon says that, as of now, it is selling more electronic books than books in print. Since April, the company says that for every 100 paperbacks or hard covers, it moves 105 e-Books.
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