A C++ tutorial is a comprehensive guide designed to help beginners and advanced learners understand the fundamentals and advanced concepts of the C++ programming language. It covers topics such as variables, data types, control structures, object-oriented programming, and standard libraries. Through step-by-step lessons, examples, and exercises, a C++ tutorial helps users build a solid foundation in coding with C++, enabling them to write efficient, scalable, and maintainable programs for various applications, from system software to game development.