Kenichi Suzuki presented on using structured data to improve search engine optimization. He discussed case studies showing how structured data increased traffic and engagement for recipes, job postings, and Q&A pages. He also covered the types of structured data supported by Google, including articles, events, and ratings. While rich results provide visual benefits, the main purpose of structured data is to help Google understand content better to increase ranking opportunities over time. Sites should add as much relevant structured data as possible to maximize search visibility.