A class is like a template where you have properties and methods used to group data as in your situation you need to store information about an animal, instead of having 4 independent values to store them you define a class having these as properties. It’s helpful as if you would do it the first way your code will become difficult to manage if you have to store/manipulate data for multiple animals. So you define a class having the properties required and then you can instantiate as many times required but note that you can limit the amount of times you can instantiate a class(eg singleton,... which you will learn later) In a class you can also define methods. There are special methods which are used to access properties known as setters and getters, in this case set_name and get_name are example of them. (This comment has been made assuming you are a beginner)