This undergraduate textbook is written in a form of a lively dialogue between two students and a professor on their way to explore the world of computer programming. The book is organized into 12 thematic chapters, supported by working examples in HTML, CSS, and JavaScript. Each chapter contains practical homework problems, and a list of related keywords. The general structure of the book is multilayered: the basic language syntax and rules are fleshed out with the contents and structure while still keeping the discussion simple and manageable. The main body of the text is accompanied by four appendices, including abbreviated references for the three covered languages.