1. Research is important to avoid errors when creating products, as research allows you to tailor the product to the audience and market. 2. There are three main types of research: audience research to understand the target customer, market research to analyze the relevant market, and production research to determine necessary materials and equipment. 3. Qualitative and quantitative research methods can be used, with qualitative involving open-ended questions to understand opinions and quantitative using closed questions and statistics.