Richard J. Haier is Professor Emeritus at the University of California, Irvine, USA. He pioneered neuroimaging studies of intelligence, created The Intelligent Brain (The Great Courses), served as President of the International Society for Intelligence Research (ISIR), and is Editor-in-Chief of Intelligence. He received the Lifetime Achievement Award from ISIR (2020), co-edited The Cambridge Handbook of Intelligence and Cognitive Neuroscience (2021) and authored The Neuroscience of Intelligence (2017). Dr. Haier has done podcasts with Jordan Peterson, Scott Barry Kaufman, and Lex Fridman. Personal website: richardhaier.com Roberto Colom is Professor of Differential Psychology at Universidad Autónoma de Madrid, Spain. He has authored/edited twenty books and published 174 peer-reviewed articles. He has a wide network of scientific collaborations around the globe and he is a member of the International Society for Intelligence Research (ISIR). He was among the top five researchers in the latest bibliometric analysis of articles published in the journal Intelligence. For further information, visit: https://sites.google.com/site/colomresearch/Home. Earl Hunt was Professor Emeritus at the University of Washington, USA, where he was a faculty member since 1966. He also taught at Yale University, the University of California, Los Angeles, and the University of Sydney, Australia. His other books include Concept Learning (1962), Experiments in Induction (1966), Artificial Intelligence (1975), Will We Be Smart Enough? (1995), Thoughts on Thought (2002), The Mathematics of Behavior (2007), and Human Intelligence (2011). He received the International Society for Intelligence Research's Lifetime Achievement award for his contributions to the study of intelligence.

'A riveting survey of modern research to unlock the nature and biological foundations of human intelligence by pioneers in the field.' Aron K. Barbey, University of Illinois at Urbana-Champaign, USA

• List of figures; List of tables; List of boxes; Preface; Acknowledgements; 1. A brief voyage to the past; 2. Basic concepts; 3. Psychometric models of intelligence; 4. Cognitive models of intelligence and information processing; 5. Intelligence and the brain; 6. The genetic basis of intelligence; 7. Experience and intelligence; 8. Intelligence and everyday life; 9. Introduction to the scientific study of population differences; 10. Sex differences and intelligence; 11. Intelligence and aging; 12. Intelligence in the world; 13. Enhancing intelligence; 14. A final word; References; Index.

Richard J. Haier is Professor Emeritus at the University of California, Irvine, USA. He pioneered neuroimaging studies of intelligence, created The Intelligent Brain (The Great Courses), served as President of the International Society for Intelligence Research (ISIR), and is Editor-in-Chief of Intelligence. He received the Lifetime Achievement Award from ISIR (2020), co-edited The Cambridge Handbook of Intelligence and Cognitive Neuroscience (2021) and authored The Neuroscience of Intelligence (2017). Dr. Haier has done podcasts with Jordan Peterson, Scott Barry Kaufman, and Lex Fridman. Personal website: richardhaier.com Roberto Colom is Professor of Differential Psychology at Universidad Autónoma de Madrid, Spain. He has authored/edited twenty books and published 174 peer-reviewed articles. He has a wide network of scientific collaborations around the globe and he is a member of the International Society for Intelligence Research (ISIR). He was among the top five researchers in the latest bibliometric analysis of articles published in the journal Intelligence. For further information, visit: https://sites.google.com/site/colomresearch/Home. Earl Hunt was Professor Emeritus at the University of Washington, USA, where he was a faculty member since 1966. He also taught at Yale University, the University of California, Los Angeles, and the University of Sydney, Australia. His other books include Concept Learning (1962), Experiments in Induction (1966), Artificial Intelligence (1975), Will We Be Smart Enough? (1995), Thoughts on Thought (2002), The Mathematics of Behavior (2007), and Human Intelligence (2011). He received the International Society for Intelligence Research's Lifetime Achievement award for his contributions to the study of intelligence.

'A riveting survey of modern research to unlock the nature and biological foundations of human intelligence by pioneers in the field.' Aron K. Barbey, University of Illinois at Urbana-Champaign, USA

• List of figures; List of tables; List of boxes; Preface; Acknowledgements; 1. A brief voyage to the past; 2. Basic concepts; 3. Psychometric models of intelligence; 4. Cognitive models of intelligence and information processing; 5. Intelligence and the brain; 6. The genetic basis of intelligence; 7. Experience and intelligence; 8. Intelligence and everyday life; 9. Introduction to the scientific study of population differences; 10. Sex differences and intelligence; 11. Intelligence and aging; 12. Intelligence in the world; 13. Enhancing intelligence; 14. A final word; References; Index.

Richard J. Haier is Professor Emeritus at the University of California, Irvine, USA. He pioneered neuroimaging studies of intelligence, created The Intelligent Brain (The Great Courses), served as President of the International Society for Intelligence Research (ISIR), and is Editor-in-Chief of Intelligence. He received the Lifetime Achievement Award from ISIR (2020), co-edited The Cambridge Handbook of Intelligence and Cognitive Neuroscience (2021) and authored The Neuroscience of Intelligence (2017). Dr. Haier has done podcasts with Jordan Peterson, Scott Barry Kaufman, and Lex Fridman. Personal website: richardhaier.com Roberto Colom is Professor of Differential Psychology at Universidad Autónoma de Madrid, Spain. He has authored/edited twenty books and published 174 peer-reviewed articles. He has a wide network of scientific collaborations around the globe and he is a member of the International Society for Intelligence Research (ISIR). He was among the top five researchers in the latest bibliometric analysis of articles published in the journal Intelligence. For further information, visit: https://sites.google.com/site/colomresearch/Home. Earl Hunt was Professor Emeritus at the University of Washington, USA, where he was a faculty member since 1966. He also taught at Yale University, the University of California, Los Angeles, and the University of Sydney, Australia. His other books include Concept Learning (1962), Experiments in Induction (1966), Artificial Intelligence (1975), Will We Be Smart Enough? (1995), Thoughts on Thought (2002), The Mathematics of Behavior (2007), and Human Intelligence (2011). He received the International Society for Intelligence Research's Lifetime Achievement award for his contributions to the study of intelligence.

'A riveting survey of modern research to unlock the nature and biological foundations of human intelligence by pioneers in the field.' Aron K. Barbey, University of Illinois at Urbana-Champaign, USA

• List of figures; List of tables; List of boxes; Preface; Acknowledgements; 1. A brief voyage to the past; 2. Basic concepts; 3. Psychometric models of intelligence; 4. Cognitive models of intelligence and information processing; 5. Intelligence and the brain; 6. The genetic basis of intelligence; 7. Experience and intelligence; 8. Intelligence and everyday life; 9. Introduction to the scientific study of population differences; 10. Sex differences and intelligence; 11. Intelligence and aging; 12. Intelligence in the world; 13. Enhancing intelligence; 14. A final word; References; Index.