Part I. Intelligence and its Measurement: 1. The concept of intelligence; 2. A history of research on intelligence part I: pre-twentieth century origins in philosophy; 3. A history of research on intelligence part II: psychological theory, research, and practice in the nineteenth and twentieth centuries; 4. An alternative view on the measurement of intelligence and its history; 5. Factor-analytic models of intelligence; Part II. Development of Intelligence: 6. Genetic bases of intelligence; 7. Intelligence in infancy; 8. Intelligence in childhood; 9. Intelligence in adulthood; 10. Developing intelligence through instruction; Part III. Intelligence and Group Differences: 11. Intellectual disability; 12. Prodigies and savants; 13. Intellectual giftedness; 14. Sex differences in intelligence; 15. Racial and ethnic group differences in the United States: multi-cultural perspectives; 16. Race and intelligence: it's not a black and white issue; Part IV. Biology of Intelligence: 17. Animal intelligence; 18. The evolution of intelligence: reconstructing the pathway to the human mind; 19. The biological basis of intelligence; Part V. Intelligence and Information Processing: 20. Basic processes of intelligence; 21. Working memory and intelligence; 22. Intelligence and reasoning; 23. Intelligence and problem solving; 24. Intelligence and decision making; 25. Artificial intelligence; 26. Intelligence and video games; Part VI. Kinds of Intelligence: 27. The theory of multiple intelligences; 28. The augmented theory of successful intelligence; 29. Emotional intelligence; 30. Practical intelligence; 31. Social intelligence; 32. Collective intelligence; 33. Leadership intelligence; 34. Cultural intelligence; 35. Mating intelligence; 36. Consumer and marketer intelligence; Part VII. Intelligence and its Role in Society: 37. Intelligence in worldwide perspective: a twenty-first-century update; 38. Historical evolution of intelligence; 39. Secular changes in intelligence: the 'Flynn Effect'; 40. Society and intelligence; 41. Environmental effects on intelligence; Part VIII. Intelligence and Allied Constructs: 42. Intelligence and personality; 43. Intelligence and achievement; 44. Intelligence and motivation; 45. Intelligence and creativity; 46. Intelligence and rationality; 47. Intelligence and wisdom; 48. Intelligence and expertise; Part IX. Folk Conceptions of Intelligence: 49. Self- and other-estimates of intelligence; Part X. Conclusion: 50. Speculations on the future of intelligence research.