Four RBmedia companies—Recorded Books, HighBridge Audio, Tantor Media, and Christian Audio—receive nominations in 13 different categories for the 2018 Audie Awards Landover, MD, February 6, 2018 – Four of RBmedia’s US publishing brands were honored with nominations in this year’s Audies® competition. Recorded Books, HighBridge Audio, Tantor Media, and Christian Audio received 19 nominations across…