| title | creator | language | description | tableOfContents | contributor | subject | created |
| On the Significance of Science and Art | Tolstoy, Leo, graf, 1828-1910 | en | | | Hapgood, Isabel Florence, 1850-1928 [Translator] | Science; Art; Social problems | 2003-01-01 |
| Christmas
Its Origin, Celebration and Significance as Related in Prose and Verse | | en | | | Schauffler, Robert Haven, 1879-1964 [Editor] | Christmas -- Poetry; Christmas -- Literary collections | 2006-07-25 |
| Human Traits and their Social Significance | Edman, Irwin, 1896-1954 | en | | | | | 2007-08-13 |
| English Literature
Its History and Its Significance for the Life of the English Speaking World | Long, William Joseph, 1866-1952 | en | | | | | 2004-01-01 |
| Pantheism, Its Story and Significance
Religions Ancient and Modern | Picton, J. Allanson, 1832-1910 | en | | | | Pantheism; Religion | 2004-02-01 |
| The Paper Moneys of Europe
Their Moral and Economic Significance | Hirst, Francis Wrigley, 1873-1953 | en | | | | Paper money; Currency question | 2009-07-23 |