1. Introduction
Part I - The World in our Conscious Minds
2. Icons and images
3. Models of possibilities: from conjuring tricks to disasters
Part II - The World in our Unconscious Minds
4. Mental architecture and the unconscious
5. Intuitions and unconscious reasoning
6. Emotions as inferences
7. Reasoning in psychological illnesses
Part III - How We Make Deductions
8. Only connections
9. I'm my own grandpa: reasoning about identities and other relations
10. Syllogisms and reasoning about properties
11. Isn't everyone an optimist? The case of complex reasoning
Part IV - How We Make Inductions
12. Modulation: a step towards induction
13. Knowledge and inductions
14. Sherlock Holmes's method: abduction
15. The balance of probabilities
Part V - What Makes Us Rational
16. Counterexamples
17. Truths, falsehoods, and the invention of logic
Part VI - How We Develop our Ability to Reason
18. How reasoning develops from childhood
19. Strategies and cultures
20. How can we improve our reasoning
Part VII - Knowledge, Beliefs, and Problems
21. The puzzles of 'if'
22. The problems of causation and obligation
23. Beliefs, heresies, and changes in mind
24. How we solve problems
Part VIII - Expert Reasoning in Technology, Logic, and Science
25. Flying bicycles: how the Wright brothers invented the airplane
26. Unwrapping an Enigma
27. On the mode of communication of cholera
Conclusions
28. How we reason