Books about Christianity -- Controversial literature (sorted by popularity)
- Versuch einer Kritik aller Offenbarung (German) Johann Gottlieb Fichte 80 downloads
- The Kernel and the Husk: Letters on Spiritual Christianity Edwin Abbott Abbott 75 downloads
- De la cruauté religieuse (French) baron d' Paul Henri Thiry Holbach 74 downloads
- Letters to Eugenia; Or, A Preservative Against Religious Prejudices baron d' Paul Henri Thiry Holbach 69 downloads
- The Doubts of Infidels William Nicholson 64 downloads
- Christian Mystery: A Chinese Tale, Found in the Portfolio of a Portuguese Friar Anonymous 63 downloads
- Antikristus: Arvostelukoe kristinopista (Finnish) Friedrich Wilhelm Nietzsche 59 downloads
- The Cradle of the Christ: A Study in Primitive Christianity Octavius Brooks Frothingham 56 downloads
- Thoughts on the Christian Religion, by a Deist Anonymous 51 downloads
- Ingersoll in Canada: A Reply to Wendling, Archbishop Lynch, Bystander; and Others Allen Pringle 42 downloads