| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| coolest optical illusion books | 1.84 | 0.3 | 9016 | 69 | 30 |
| coolest | 0.96 | 0.9 | 8811 | 90 | 7 |
| optical | 1.1 | 0.6 | 5082 | 68 | 7 |
| illusion | 1.24 | 0.8 | 7502 | 63 | 8 |
| books | 0.2 | 1 | 8585 | 53 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| coolest optical illusion books | 0.05 | 0.1 | 6611 | 41 |
| coolest optical illusion art | 1.48 | 0.2 | 7180 | 61 |
| coolest optical illusion pictures | 1.5 | 0.8 | 7675 | 90 |
| amazon optical illusion books | 0.6 | 0.4 | 7426 | 61 |
| best books on world optical illusions | 1.03 | 0.1 | 6388 | 48 |
| coolest optical illusion ever | 1.08 | 0.8 | 7064 | 65 |
| optical illusion picture books | 1.61 | 0.9 | 160 | 82 |
| optical illusion books for kids | 1.74 | 0.5 | 1469 | 41 |
| coolest optical illusion videos | 1.41 | 0.9 | 127 | 97 |
| coolest optical illusions in the world | 1.9 | 0.7 | 9649 | 11 |
| coolest optical illusion games | 0.55 | 0.1 | 2794 | 3 |
| the best optical illusions | 1.46 | 0.5 | 2301 | 94 |
| coolest optical illusion experiments | 0.19 | 0.5 | 9301 | 17 |
| world's coolest optical illusions | 0.08 | 0.5 | 1572 | 54 |
| the best optical illusion pics | 1.73 | 0.3 | 4261 | 79 |
| ultimate book of optical illusions | 0.38 | 0.3 | 9836 | 83 |
| most amazing optical illusions | 0.28 | 0.6 | 6002 | 68 |
| amazing optical illusions book | 1.66 | 0.6 | 3886 | 60 |
| best optical illusions pictures | 0.58 | 1 | 7470 | 56 |
| top 10 optical illusions | 1.47 | 0.4 | 6920 | 87 |
| really cool optical illusions | 1.89 | 0.5 | 7456 | 98 |
| book of optical illusions | 0.83 | 0.5 | 7690 | 60 |
