Copies of the book by first lady Michelle Obama "American Grown: The Story of the White House Kitchen Garden and Garden Across America," are on display at the Politics & Prose bookstore in Washington,... more 
Copies of the book by first lady Michelle Obama "American Grown: The Story of the White House Kitchen Garden and Garden Across America," are on display at the Politics & Prose bookstore in Washington, Tuesday, May 7, 2013. Obama signed copies of her book. (AP Photo/Susan Walsh) less 
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Associated Press | Photo By Susan Walsh
Tue, May 7, 2013 2:31 PM EDT