Textbooks
| id | title | author |
| 1 | World History | John Smith |
| 2 | American History | Jane Doe |
| 3 | European History | Michael Johnson |
| 4 | Ancient Civilizations | Emily Davis |
| 5 | Modern World History | William Brown |
Chapters
| chapterName | subject |
| Introduction | History |
| Colonial America | History |
| Renaissance | History |
| Industrial Revolution | History |
| Fall of Empires | History |
Authors
| authorId | name |
| 1 | John Smith |
| 2 | Jane Doe |
| 3 | Michael Johnson |
| 4 | Emily Davis |
| 5 | William Brown |
Publishers
| publisherId | companyName |
| 1 | Pearson |
| 2 | McGraw-Hill |
| 3 | Cengage Learning |
| 4 | Wiley |
| 5 | Elsevier |
Textbooks_Chapters
| textbookId | chapterName |
| (→ Textbooks.id) | (→ Chapters.chapterName) |
| 1 | Introduction |
| 1 | Colonial America |
| 2 | Fall of Empires |
| 2 | Introduction |
| 3 | Introduction |
| 4 | Introduction |
| 5 | Introduction |