Former U.S. Secretary of State Hillary Clinton holds up a copy of her new book "What Happened" at a book signing event at Barnes and Noble bookstore,...
Former U.S. President George W. Bush waves while signing copies of his new memoir "Decision Points" at Borders Books on November 9, 2010 in Dallas,...
Senator John Kerry during "This Moment on Earth" book signing at Barnes & Noble Union Square on April 21, 2008 in New York City.
Al Gore during Al Gore In-Store Appearance For His New Book "An Inconvenient Truth" - June 12, 2006 at Barnes & Noble - 82nd Street in New York City,...
Former first lady Barbara Bush poses with a copy of her new book "Reflection" at an in-store appearance at Borders Books November 4, 2003 in...
Jimmy Carter, former President of the United States, attends the booksigning for his new book "The Hornet's Nest" at Vromans Bookstore on December...
New York Senator and former First Lady Hillary Rodham Clinton holds a copy of her autobiography, "Living History" on July 5, 2003 in Oxford, England....
Advanced copies of "41: A Portrait of My Father," by Former U.S. President George W. Bush, are stacked in the George Bush Presidential Library Center...
Atmosphere at Bill Clinton's "Bill Clinton Back to Work: Why We Need Smart Government for a Strong Economy" book signing at the Barnes & Noble, 5th...
Republican presidential candidate Mitt Romney holds a copy of his book as he addresses the crowd at the Tilton School January 6, 2012 in Tilton, New...
Laura Bush attends book signing for "Spoken From The Heart" at Books and Books on May 28, 2010 in Coral Gables, Florida.
First lady Michelle Obama signs her new book "American Grown: The Story of the White House Kitchen Garden and Gardens Across America" during a book...
Gerald Ford and Betty Ford during Betty Ford Signs New Book "Betty: A Glad Awakening" at Doubleday Book Store in New York City, NY, United States.
Copies of former U.S. President George W. Bush's new memoir "Decision Points" line the shelves at Borders Books on November 9, 2010 in Dallas, Texas....
President Barack Obama reads his children's book, "Of Thee I Sing: A Letter to My Daughters," to students at Long Branch Elementary School in...