Most Used Titles in Class VE23.A1
| Rank | TITLE | Lib | Uses | Year |
| 1 | Concepts and issues | WCU | 3 | |
| 2 | Concepts and issues | WCU | 2 | |
| 3 | Concepts and issues | WCU | 1 | |
| 4 | Concepts and issues | WCU | 1 | |
| 5 | Concepts and issues | WCU | 1 | |
| 6 | Concepts and issues | WCU | 1 | |
| 7 | Concepts and issues | WCU | 1 | |
| 8 | Concepts and issues | WCU | ||
| 9 | Concepts and issues | WCU | ||
| 10 | Concepts and issues | WCU |