An entrepreneur is defined as a person who habitually creates and innovates by recognizing opportunities to build something of value. The document discusses the personality traits of entrepreneurs, including a motivation for independence and wealth, perseverance, and risk-taking. It also outlines environmental and action factors that contribute to entrepreneurial success. Common mistakes that cause small businesses to fail include overexpansion, poor financial management, inadequate business plans, and failure to adapt to market changes. Overall, the key to entrepreneurial success is identifying problems and developing innovative solutions.