Peter Costanzo, director of online marketing for the Perseus Book Group, is leaving to take a position as director of digital content at F+W Media. He will report to Chad Phelps, F+W executive v-p, eMedia.

F+W Media chairman and CEO David Nussbaum said Costanzo’s “experience and innovative leadership in the e-book and enhanced e-book sector will accerlerate our growth in the digital book business.” Costanzo was director of online marketing at Perseus for six years, during which he worked on the production of such enhanced e-books or book apps as Cathy’s Book and JFK: 50 Days as well as producing a range of video, audio, podcasts and other enhanced digital content. Costanzo also blogs about digital reading at Bookcurrents.com.