Assuming subjects and skills refer to book-learned knowledge rather than life experience: I'm trying to decide what to study in college or through MOOCs like those offered by EdX or Coursera or whether or not I should choose a business or a non-business major. I am trying to decide what to focus on. If I self-studied instead, I wouldn't have any debt from my degree but could still need a degree for other reasons. What specific topics are essential for entrepreneurs to know? For example, there's a lot to learn as a finance major and I'm not sure which topics would be relevant for entrepreneurship. I've tried thinking about it in other ways, for example: "What should a successful entrepreneur/CEO be able to do?" and tried to figure out which subjects will teach me the skills I'll need to achieve those goals.