You need all the knowledge you can get to succeed in a business enterprise of your own. What one person see as knowledge needed for him will be different from what another sees as the knowledge they will need to success in their own businessThere are four types of knowledge:
book knowledge, reading what people wrote down;
market knowledge, learning the competitive market inside;
business knowledge, how to design enterprise and execute;
building and selling experience.
What type of knowledge do you think you need to be successful in doing business?