Learn Lean Startup with a minimum of theory and maximum practice. What you will learn is immediately actionable on your project.
90% of startups fail because they do not build the right product.
So how do you know what to build? Simply by listening to your future customers and discovering their needs, problems and what really motivates them.
For that, you will have to master the delicate art of the customer interview, resist the temptation to sell them your idea and concentrate on their problems. As a qualitative tool for understanding your market, the customer interview is an essential exploration technique if you do not want to build something that nobody wants.