Today's edition of the New York Times contains an op-ed headlined "Reading, Writing and Running for President." Interesting excerpt:
Book sales, to borrow an economist's phrase, may be a lagging indicator: past sales are no guarantee of future appeal. In addition, book sales can reflect notoriety as much as popularity; curiosity doesn't always translate into votes.
Tom Daschle's book has pretty much bombed (current Amazon sales rank: 3,589) while his Democratic colleague, Zell Miller, has published a book that has become a bestseller (current Amazon sales rank:57).