Palin is scheduled to sign copies of her book, "Going Rogue," Friday afternoon in the Cincinnati suburbs. The store expects more than 1,000 people to turn out.

The book about her earlier life, her time as governor, and her experience as Republican running mate comes more than a year after GOP presidential candidate John McCain introduced her publicly at a Dayton rally. She had slipped into Ohio at a small airport between Dayton and Cincinnati.

She is beginning her tour in a key region politically, with earlier stops in Michigan and Indiana. Later on Friday, she has a second book signing in Ohio, in the Columbus area.

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