This book provides a comprehensive introduction to imperative-procedural programming using the scripting language Perl. The gradual introduction of language constructs through numerous practical examples facilitates the systematic learning of this and other imperative programming languages such as C or Pascal. The exercises included in the book are closely aligned with the learning content, making the text excellent for self-study. The presentation is designed in a way that allows beginners to develop solid programming skills in a short time. The focus is on learning algorithmic thinking and its implementation in program code. The foundational knowledge conveyed here is essential for understanding object-oriented languages like C++ or Java. The book is based on the author's extensive experience.