A business plan is a document that describes a company's goals, strategies, and finances. It has three primary parts: the business concept, marketplace analysis, and financial projections. The business concept discusses the industry, product/service, and plans for success. The marketplace section analyzes customers and competition. The financial section includes income statements, cash flow forecasts, and break-even analysis. A good business plan is concise, convincing, and complete to attract investors and guide the business execution.