The document discusses various roles in the media industry including commissioning editors, editorial assistants, producers, writers, researchers, and executive producers. It provides examples for each role and describes their typical responsibilities. Commissioning editors identify books or media to publish and ensure authors deliver on time. Editorial assistants provide support across all publication stages. Producers oversee projects from start to finish. Writers create fiction and non-fiction works across various platforms. Researchers develop program ideas and fact check. Executive producers oversee films and ensure they are completed on budget and schedule.