Most people who dream of starting a business never do — not because they lack ideas, but because no one showed them the path from idea to paying customer. This beginner course is that path, stripped of hype and jargon, built for someone starting from zero on the side of a job. You will begin where good businesses really begin: finding a problem worth solving and shaping an idea around a real customer, not just a cool product. Then you will learn to validate that idea before spending money or quitting anything — talking to customers, testing demand, and killing bad ideas cheaply. From there you build a minimum viable product: the smallest thing you can offer to start learning and earning. You will learn practical, low-budget marketing and sales to get your first customers, and finally the operations and money basics every founder needs — pricing, cash flow, simple bookkeeping, and legal basics. Throughout, we favor small, reversible, real-world experiments over big risky bets. By the end you will have a clear, testable plan to launch something real without betting the house.