Jonathan Riley-Smith was Emeritus Dixie Professor of Ecclesiastical History at the University of Cambridge, UK. His many publications on the Crusades include What Were the Crusades? (2009), The Crusades, Christianity and Islam (2008) and The First Crusade and the Idea of Crusading (1986).

Susanna A. Throop was Professor and Department Chair of History at Ursinus College, USA. She is the author of The Crusades: An Epitome (2018) and Crusading as an Act of Vengeance, 1095-1216 (2011). She is also the co-editor of The Crusades and Visual Culture (2015) and Vengeance in the Middle Ages (2010).

More maps and digital versions of primary sources that are explicitly referenced in the book

List of Figures
List of Maps
Lists of Text Boxes
Note on Names and Terminology
Preface to the 4th Edition
Acknowledgements
Introduction
1. Studying the History of the Crusades
2. The Emergence of the First Crusade
3. The First Crusade
4. The Early Crusader States, 1099-1150
5. Diversification, 1099-1150
6. Development, 1150-1198
7. Intensification, 1198-1240
8. Institutionalization, 1198-1240
9. Ambitions and Rebellions, 1240-1300
10. Reimagined, 1300-1370
11. Reconfigured, 1370-1520
12. Persistent, 1520-1750
13. Legacies, 1750 to the 21st Century
Afterword
Chronology
Notes
Further Reading
Index