| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| top 10 most bought books | 1.01 | 0.1 | 2929 | 54 |
| top 10 most bought books of all time | 1.71 | 1 | 2362 | 79 |
| most bought books on amazon | 0.85 | 0.8 | 5005 | 45 |
| most purchased books of all time | 0.41 | 0.7 | 2670 | 48 |
| who buys the most books | 0.31 | 0.4 | 8049 | 47 |
| most purchased type of books | 0.58 | 0.4 | 1384 | 68 |
| top 10 most selling books | 0.79 | 0.8 | 7426 | 40 |
| top 10 most sold books | 1.39 | 0.4 | 5471 | 35 |
| the most bought book in the world | 1 | 0.1 | 6751 | 26 |
| top books to buy | 0.01 | 0.5 | 1569 | 15 |
| most purchased book ever | 1.65 | 0.2 | 7413 | 72 |
| most purchased books on amazon | 1.95 | 0.9 | 7387 | 53 |
| most purchased book in history | 1.74 | 0.4 | 374 | 32 |
| what books sell the most | 0.59 | 0.1 | 2683 | 58 |
| what authors have sold the most books | 1.89 | 1 | 9401 | 79 |
| who sells the most books | 0.09 | 0.8 | 6514 | 30 |
| authors with most books sold | 1.52 | 0.4 | 4143 | 78 |
| list most buyers of a book | 0.76 | 0.5 | 134 | 56 |
| best book ever sold | 0.15 | 0.7 | 2167 | 52 |
