1. What is critical thinking and how to improve it; 2. Identifying reasons and conclusions: the language of reasoning; 3. Understanding reasoning: different patterns of reasoning; 4. Understanding reasoning: assumptions, context and a thinking map; 5. Clarifying and interpreting expressions and ideas; 6. The acceptability of reasons: including their credibility; 7. Judging the credibility of sources skilfully; 8. Evaluating inferences: deductive validity and other grounds; 9. evaluating inferences: assumptions and other relevant arguments; 10. Reasoning about causal explanations; 11. Decision-making: options, consequences, values and risks; 12. Critical thinking about the internet (how to get reliable information from the internet); Questions appendix; Answers to questions; Glossary; Bibliography; Index.