Mark Yerkes has an extensive background in entertainment. He has written numerous screenplays and stage plays, and has authored two published books. Through videoparables.org he pr...view moreMark Yerkes has an extensive background in entertainment. He has written numerous screenplays and stage plays, and has authored two published books. Through videoparables.org he produces Christian faith-based videos that reach across cultural boundaries. He and his wife Tess split time between California and their home in the Philippines.view less