Sean Desmond has been named v-p and publisher of the Grand Central Publishing imprint Twelve, following the announcement on Thursday that Karen Kosztolnyik was taking over as editor-in chief of hardcovers at GCP. Desmond has been editorial director for the imprint since 2013. In addition, Paul Samuelson has been promoted to publicity director at the imprint.

"I’m thrilled by the success we are having at Twelve," Desmond said in a statement. "The mission and boutique nature of this imprint is a publisher's dream and I am so excited to continue making Twelve a terrific home for authors to receive excellent attention and every chance to succeed with their writing."

The moves mark the latest in a series of executive changes at Grand Central and its imprints since the December departure of former GCP president and publisher Jamie Raab, along with v-p and editor-in-chief of hardcovers Deb Futter, who also helmed Twelve.

Desmond will report directly to Grand Central senior v-p and publisher Ben Sevier.