This book introduces you to the world of computer programming. Little prior knowledge is needed except for starting a text editor and typing. The text accompanies you all the way, from first experiments to writing real-world programs. How does a computer work? Which components does a computer have? What is a computer program? How do I analyze problems? How do I formulate solutions in program code? This book answers all these questions by means of numerous example programs of increasing size and complexity, starting with simple code that displays a greeting and ending with a fun video game and a full-featured text editor.