Codie Sanchez's Main Street Millionaire provides a guide to acquiring and growing small, profitable businesses. The book emphasizes buying established, cash-flowing businesses ("boring businesses") rather than starting high-risk ventures. Sanchez details strategies for identifying motivated sellers, negotiating favorable deals, and managing acquired businesses efficiently. She shares case studies and practical advice on due diligence, financing (including seller financing), hiring operators, and scaling operations. The ultimate goal is building wealth through business ownership and achieving financial freedom.