Logic refers to the systematic study of valid inference forms and the fundamental laws of truth. A valid inference occurs when there is a definite logical relationship between the inference and its conclusion. The domain of logic encompasses the classification of arguments, the analysis of proof and inference, and the study of semantics and syntax. Various types of logic exist, including syllogistic logic, propositional logic, predicate logic, and modal logic. Critical thinking, on the other hand, involves the application of logic to assess facts and reach judgments. The topics included in this book on logic and critical thinking are of utmost significance and bound to provide incredible insights to readers. It presents the complex subject of logic in the most comprehensible and easy to understand language. It will prove to be immensely beneficial to students and researchers in this field.