William Hughes's Critical Thinking, recently revised and updated by Jonathan Lavery, is a comprehensive and accessible introduction to the essential skills required to make strong arguments. Hughes and Lavery give a thorough treatment of such traditional topics as deductive and inductive reasoning, logical fallacies and how to spot them, the importance of inference, how to recognise and avoid ambiguity, and how to assess what is or is not relevant to an argument. But they also cover a variety of topics not always treated in books of this sort - special concerns to keep in mind when reasoning about ethical matters and how the nature of a language can affect the structure of an argument. The book gives a lucid treatment of the differences between descriptive and evaluative meaning: one person's freedom fighter is another person's terrorist.
For the fourth edition, Jonathan Lavery has added a new chapter on scientific reasoning, expanded the treatment of analogies, added numerous examples, and revised and updated the text throughout.

Jonathan Lavery is Assistant Professor of Philosophy and Contemporary Studies at Wilfrid Laurier University: Brantford.