Olsen Twins Book Signing (20 images)

Ashley Olsen (L) and her twin sister Mary-Kate Olsen pose before a book signing to promote their new book "Influence" in Los Angeles on November 12, 2008. (UPI Photo/Jim Ruymen)

Mary Kate (L) and Ashley Olsen sign copies of their new book "Influence" at Barnes & Noble in New York on October 28, 2008. (UPI Photo/Laura Cavanaugh)

Ashley Olsen (L) and her twin sister Mary-Kate Olsen pose before a book signing to promote their new book "Influence" in Los Angeles on November 12, 2008. (UPI Photo/Jim Ruymen)

Mary Kate (L) and Ashley Olsen sign copies of their new book "Influence" at Barnes & Noble in New York on October 28, 2008. (UPI Photo/Laura Cavanaugh)