| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| free history books online | 1.75 | 0.9 | 9807 | 23 | 25 |
| free | 1.33 | 0.1 | 2121 | 38 | 4 |
| history | 1.4 | 0.3 | 250 | 13 | 7 |
| books | 1.97 | 0.4 | 3477 | 40 | 5 |
| online | 1.24 | 0.9 | 6139 | 60 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| free history books online | 1.74 | 1 | 8664 | 10 |
| free history books online for kids | 0.23 | 0.8 | 9500 | 91 |
| read history books online free | 1.83 | 0.9 | 5922 | 63 |
| black history books online free | 0.28 | 0.1 | 9156 | 75 |
| books online for free for history lovers | 0.41 | 0.5 | 1642 | 48 |
| free online pennsylvania history books | 0.2 | 0.1 | 1575 | 29 |
| free black history books pdf online | 0.68 | 0.2 | 6402 | 53 |
| history books online free reading | 0.47 | 1 | 7881 | 58 |
| online history books for free | 0.33 | 0.5 | 2819 | 25 |
| history books for free | 1.28 | 0.9 | 1351 | 47 |
| history books for kids | 0.79 | 0.1 | 7070 | 88 |
| free history books to read online | 0.63 | 0.5 | 6318 | 24 |
| history book free online | 0.19 | 1 | 269 | 67 |
| book for kids on history | 0.24 | 1 | 2583 | 30 |
| history books free download | 0.69 | 0.9 | 9926 | 23 |
| history books for children | 1.41 | 0.7 | 1130 | 83 |
