Ken Michaels is to join Macmillan Science and Education at the end of the month as its chief operating officer.
Michaels, who will be based in London and New York, will join the global leadership team and report to c.e.o. Annette Thomas.
He joins from Hachette Book Group, where he was president and c.o.o., based in New York. Previously he worked for McGraw-Hill companies.
Thomas said: "Over the course of his career, Ken has built a proven record of operational leadership and transformation in content-intensive industries. I am delighted to welcome him to our growing team. He is a hugely talented and experienced leader with the passion and energy to innovate, who has demonstrated his ability to support an evolving business."
Michaels said: "There has never been a more exciting time to be in publishing, and the bringing together of Macmillan's portfolio of science and education businesses represents a powerful opportunity to make a major impact on learning and discovery around the world. I am looking forward to what we can achieve with a new structure and focus."