| Author | Book Name | |
| United States. Office of Strategic Services | Simple Sabotage Field Manual | PDF Book |
| Universal House of Justice | A Compilaton on Women | PDF Book |
| Universal House of Justice | The Promise of World Peace | PDF Book |
| Universal House of Justice | Compilation on Peace | PDF Book |
| Universal House of Justice | Extracts from the Writings of Bahá’u’lláh and `Abdu’l-Bahá and from the Letters of Shoghi Effendi and the Universal House of Justice on Scholarship | PDF Book |
| Uphues, Goswin, 1841-1916 | Einführung in die moderne Logik. Erster Teil. | PDF Book |