Greenleaf Book Group announced that effective January 1, 2014, founder and CEO Clint Greenleaf will become chariman, and current chief operating officer Tanya Hall will assume the top post.

"In her nine-plus years at Greenleaf, Tanya has proven her skills for driving profitable growth and building Greenleaf’s reputation for quality and service,” said Clint Greenleaf. “Her vision and drive make her a natural fit to build on Greenleaf’s growth as CEO while I focus on strategic partnerships, business development, and author acquisitions in the chairman role."

Launched in 1997, Greenleaf Book Group is now doing $12 million in revenue annually.