aims to reintegrate the teaching of logic across the disciplines by presenting it in a strategic manner that combines formal aspects with teleological (purpose-driven) applications. It addresses the challenge of teaching logic in modern academia, where it has been fragmented and taught in various specialized forms across different departments. The book is organized into two main parts. Part I, Teleological Logic, explores logic's relevance in science, philosophy, and life, covering topics such as critical thinking, rhetoric, consciousness, objectivity, and moral dimensions. Part II, Formal Logic, delves into propositional logic, predicate logic, and other formal systems, discussing their underpinnings and applications in various fields. The essays included in the text provide readers with a healthy sample of the underlying philosophical richness of logic both on its own and in its relationship to human thought and life. is suitable for higher education courses in philosophy, particularly those focusing on critical thinking and logic. It can serve as a standalone text for a critical thinking course that includes an introduction to formal logic or as a supplementary text alongside a more technical formal logic course.