Computational thinking is the practice of breaking down problems into steps that a computer, or a person, can follow to reach a solution. This book introduces that process and shows how it connects to writing functional, reliable code. Generated with the assistance of artificial intelligence, it presents core ideas such as decomposition, pattern recognition, abstraction, and algorithm design, then applies them to practical programming tasks. You will learn how to approach a problem methodically, choose appropriate structures and logic, and translate your reasoning into working software. The book also discusses common pitfalls in problem solving and offers guidance on testing and refining your solutions. Written for readers with some familiarity with programming concepts, it serves as a clear, text-based introduction to thinking computationally and applying that thinking to real coding challenges.