"Being Logical: A Guide to Good Thinking" by D.Q. McInerny is a concise guide to improving logical reasoning and critical thinking skills. The book outlines the principles of logic, aiming to enhance clarity and precision in thought processes. It emphasizes the importance of avoiding assumptions and biases while providing tools to recognize and correct logical fallacies. Through practical examples, McInerny illustrates how logic is applied in everyday life, encouraging introspection and effective decision-making.