HarperCollins Christian Publishing acquires Olive Tree Publisher expands its digital portfolio with Christian app and software company Contact: Casey Harrell, director of Corporate Communications tel: 615-902-1109 email: Casey.Harrell@HarperCollins.com (Nashville, TN) HarperCollins Christian Publishing, Inc. (HCCP) today announced its acquisition of Olive Tree Bible Software, Inc. Olive Tree is an industry leading online and mobile Christian Bible resource and e-commerce company. Its software is accessible on the desktop, tablets, and mobile devices across all major platforms and offers a wide range of…