Introduction; How to Use This Book; Section 1: Problem Solving; 1. What do we mean by a 'problem'?; 2. Selecting and using information; 3. Processing data; 4. Working with models; 5. Solving problems by searching; 6. Finding methods of solution; 7. Trends in data; 8. Transforming data; 9. Summarised Data; 10. Identifying features of a model; 11. Necessary and Sufficient Conditions; 12. Changing the scenario of a problem; Section 2: Critical Thinking; 13. An introduction to critical thinking; 14. Claims, statements, and assertions; 15. Assessing claims; 16. Grounds, reasons, and evidence; 17. Evaluating evidence: a case study; 18. Statistical evidence; 19. Uses of evidence: inference and explanation; 20. Identifying argument; 21. Analysing argument; 22. Interpretation; 23. Assumptions; 24. Evaluating argument; 25. Applying logic; 26. Longer texts; 27. Multiple sources; Glossary; Index; Acknowledgements.