The next step after using procedural code is to write modular software by using functions. Functions, from simple ones to multiple-argument ones, are useful in making code reusable.

Use one of the most common types in Python to represent text. From simple formatting to representing variables, using operating strings is a critical skill for Python developers.

Use data in your applications by creating literal values and variable values of different data types.

Use functionality in the .NET Class Library by calling methods that return values, accept input parameters, and more.

Write code that is easier to read, update and support using naming conventions, comments and whitespace.

Learn the basic syntax and thought processes required to build simple applications using C#.