The textbook aims to teach the systematic approach to problem-solving, applying commonly accepted software development methods for designing programming solutions. It can be used in introductory courses on programming methods. The wide variety of applications and exercises from different domains allows the instructor to design an introductory course in programming with C, both for Computer Science departments and for students from many other scientific areas. The specific features of the volume include: exercises at the end of each section, examples, case studies, error studies, chapter summaries, short-answer exercises along with their answers, programming projects.