The interview planner should bring his own representative work to prove his ability and experience in planning. For novels, you can consider bringing your recently published works or novels that you are currently writing. This way, he could show the interviewer his creative ability and experience, as well as his creative ideas and planning ability. In addition, you can also bring some published novel reviews, articles, or blog posts to show the interviewer your analytical and logical thinking skills. In short, the interviewer should bring his own representative work to prove his ability and experience in planning copywriting and show his creative ideas and planning ability to the interviewer.