Charlie Redmayne, executive vice-president and chief digital officer at HarperCollins, is to become c.e.o. of Pottermore, J K Rowling's new online reading experience.
He will take up the new role on 7th November.
Pottermore chairman Neil Blair described Redmayne as "a formidable talent in both the digital and publishing spheres", saying that this, combined with Redmayne's "entrepreneurial spirit", made him the ideal appointment for the role.
Redmayne called Pottermore "a hugely exciting project which will take one of the greatest brands in literature into a digital future". The Harry Potter online site has been led through its launch by interim c.e.o. Ron Henwood, but Redmayne's appointment is said to mark "the next phase of the project".
Full registration for the Pottermore site will start at the end of this month, with the series' e-books becoming available in 2012.