Have room for another Obama book on your shelf? Little, Brown is betting that you do. The publisher has signed New York Times reporter Jodi Kantor to a seven-figure book deal to write about the Obamas. Recently, Kantor wrote a New York Times Magazine cover story on the Obama’s marriage, which said “the Obamas mix politics and romance in a way that no first couple quite have before.” It’s unclear whether Kantor will have the Obamas’ cooperation. During the campaign, she reported for the Times on Obama’s past.