Little, Brown has promoted Daniel Mallory to Sphere associate publisher.
Mallory will continue to report to Little, Brown deputy publisher David Shelley.
Mallory joined Little, Brown in 2009 as Sphere editorial director, making acquisitions including The Stonehenge Legacy by Sam Christer, as well as authors Louise Penny and Stephen Booth. Debut acquisitions include Hawk Quest by Robert Lyndon and Memoirs of an Imaginary Friend by Matthew Green.
Mallory said: "What a privilege to work across a list that's home to so many bestselling and beloved brands, and to so many authors on their way to the top. I'm hugely excited to be teaming up in this new capacity with David, my talented colleagues in Sphere editorial, and our superb sales force."
Shelley said: "I am absolutely delighted about Dan's new role. He has made a huge contribution to Sphere, and I am really confident that as associate publisher he will be instrumental in taking it to new heights. He is enormously talented, entrepreneurial and a true team player, and we are all looking forward to his input across the breadth of Sphere's commercial fiction and non-fiction publishing."
Mallory's promotion is with immediate effect.