To put it simply, a class enhances the overall coding structure and organization. It does not organically provide additional functionality, but it does help enhance the readability of your codes. As I have mentioned in my previous discussion forum, good coding habits go a long way in reducing your future debugging difficulties. The best analogy for classes is to picture a clothing drawer. You can store different types of clothing in that drawer, and in this case, as different functions and variables. Basically, in classes, you categorize a group of variables and/or functions into a predetermined data type. There are also different visibility parameters in classes, such as public and private classes. In a public class, the variables and function that was declared inside of the class are accessible outside of the scope of this particular class parameter. You are able to call these variables and functions inside of a separate main function. In contrast, a private class is strictly limited to the inside of the scope of that class. Finally, on the last note, it is crucial that we always use compilers that works with the most recent versions of C++ because, as the language evolves, there are new functions and initialization methods. The public and private classes, as mentioned earlier, were introduced much later after the initial release of the C++ language to help create a scope of visibility. Therefore, as long as we use the most up-to-date compilers, it really should not throw you an unexpected error.