10/11/2008 05:12 am ET Updated May 25, 2011

Candidates' Wives' Books Exclusively On Amazon Kindle

New biographies of potential first ladies Cindy McCain and Michelle Obama will be released exclusively on Amazon's Kindle (AMZN) e-reader, months before they go into print.

Obama's bio, "Michelle Obama: Grace and Intelligence in a Time of Change" by Elizabeth Lightfoot, is available for download on the Kindle today; the physical book is scheduled for sale later this year.

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