Recorded Books Acquires christianaudio Prince Frederick, MD and Escondido, CA  – May 5, 2016 – Recorded Books Inc., a leading provider of unabridged audiobooks and digital content to the library, school, and retail markets, announced today that it is has acquired eChristian Inc., a publisher of Christian audiobooks that operates under the christianaudio brand and is based in Escondido, California. Terms of the transaction were not disclosed. This marks the third acquisition for Recorded Books, following the additions of HighBridge…