New York-based children’s app developer Callaway Digital Arts has named Lisa Holton, CEO and founder of kids digital media producer Fourth Story Media, as its new VP of content development.

Holton, who was also the former president of Scholastic trade publishing, will focus her efforts acting as executive producer for the Learning Applications Media Partnership Project, an interactive educational program funded by a grant from the US Department of Education.

In addition to her new role, Holton will also continue to work on The Amanda Project for Fourth Story Media/HarperCollins. The project is a collaborative mystery series targeted at girls that encompasses print, online games, blogs, music and merchandise.

The move by Calloway further boosts its evolution into digital content production for iPad and other mobile devices as the company looks to leverage Holton’s experience in children’s publishing which includes work on The 39 Clues, a Scholastic book and web-based storytelling venture, as well as work on the publication of J.K. Rowling’s Harry Potter and the Deathly Hallows.

Holton has also held executive positions at HarperCollins and at Disney Global Children’s Books.

In two additional moves, Callaway has appointed Caryl Shaw, formerly executive producer at mobile game developer ngmoco, as executive producer, and former Kontiki COO Joe Ghazal as VP of engineering.