The document provides 20 points about marketing that entrepreneurs should understand. It notes that marketing problems are solved through ideas, positioning is a measure of success, brands are valuable assets, and advertising agencies have changed. It emphasizes the importance of knowing your unique selling proposition and differentiating yourself from competitors. The document stresses that marketing is not just promotion but building a brand, and that results are not always easy to measure. It encourages learning from other successful companies and having a vision beyond focus groups.