_Basics of Logic_ provides students with a strong grounding in logic with an emphasis on the importance of sophisticated, well-supported opinions with sound structure. The book is centered around the principle that critical thinking and logic teach individuals how to draw conclusions based on evidence and good reasoning. It also offers readers tools to help understand and evaluate reasoning whether it be their own or the reasoning of others. The opening chapter defines logic and explains the components of arguments. Subsequent chapters explore deduction, validity, and soundness; categorical reasoning; the square of opposition; propositional logic; truth tables; natural deduction; and more. Each chapter contains helpful resources for students including learning objectives, keywords, examples, and exercises to enhance their comprehension and engagement. _Basics of Logic_ is an invaluable, foundational resource for courses exploring critical thinking and logic.