The "Oprah Effect" on book sales

For an author graced by Oprah’s Book Club, membership translates to new editions, heightened attention and huge sales increases. Oprah’s Book Club—with picks ranging from older classics to lesser known works to Pulitzer Prize-winners—became a coveted and exclusive fraternity founded in 1996, with branded special editions selling more than 22 million copies in the past 10 years. And that 22 million is only "her" editions and does not take into account additional sales of previous editions.

As Oprah prepares to sign off from her daily talk show for good, The Nielsen Company takes a look at Oprah’s Book Club selections from the past 10 years.