| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| library of congress free book download | 0.47 | 0.7 | 9321 | 96 |
| library of congress ebooks free | 0.94 | 0.6 | 8599 | 79 |
| library of congress book program | 1.52 | 0.1 | 5858 | 29 |
| library of congress books | 0.33 | 0.1 | 5804 | 38 |
| library of congress books pdf | 0.61 | 0.6 | 3690 | 48 |
| library of congress downloads | 0.68 | 0.4 | 4084 | 85 |
| library of congress book list | 0.64 | 0.6 | 6150 | 83 |
| library of congress books to read online | 1.93 | 1 | 4095 | 51 |
| congress library online books | 1.69 | 0.5 | 4228 | 56 |
| library of congress pdf files | 0.87 | 0.1 | 2931 | 43 |
