| Title | Pages / Words | Save |
| Treasure Island | 2 / 358 |  |
| Stephen Hawking | 6 / 1533 | |
| Ebooks | 3 / 628 | |
| treasure island | 4 / 1156 | |
| Black Holes | 4 / 1037 | |
| Black Holes | 4 / 1011 | |
| Edwin Hubble | 5 / 1454 | |
| Edwin Hubble | 5 / 1454 | |
| gender | 9 / 2463 | |
| Hawking | 1 / 292 | |
| Hawkings | 2 / 414 | |
| Origin of the Universe | 15 / 4221 | |
| time travel | 8 / 2380 | |
| Orthodoxy and Progressivism: America’s Battle Over Education and a Silent Majority | 11 / 3037 | |
