What are some things I should study to become a Businessman?

Hi,
You have a great answer above. I will add a few ideas...being a business person is all about managing, working with people, working with money and sales. Anything you do in these areas will help you, volunteering, joining a club/group, becoming a group/club leader, mowing lawns, selling lemonade in front of your house...all of these are working with people, money and sales...hope this helps...good luck! :)

Hi Juan,

There are various educational career paths that students can choose from, including earning an associate, bachelor's or master's degree in business administration, management or a related field.

Although there are a variety of degree programs that aspiring business owners can choose from, general business courses will be similar for some degree programs. Similar business-related courses include:

Basics of management and marketing
Financial management and policy
Various economics courses
Accounting courses
Organizational leadership

http://study.com/articles/Business_Owner_Education_Requirements_and_Career_Information.html

This link is great and can help you a lot:
https://bigfuture.collegeboard.org/explore-careers/college-majors/business-majors-the-basics

Best!