Books about Christianity -- Controversial literature (sorted by popularity)
- Christianity in relation to Freethought, Scepticism, and Faith Charles Bradlaugh and William Connor Magee 82 downloads
- The Kernel and the Husk: Letters on Spiritual Christianity Edwin Abbott Abbott 79 downloads
- De la cruauté religieuse (French) baron d' Paul Henri Thiry Holbach 78 downloads
- Letters to Eugenia; Or, A Preservative Against Religious Prejudices baron d' Paul Henri Thiry Holbach 75 downloads
- The Doubts of Infidels William Nicholson 69 downloads
- Versuch einer Kritik aller Offenbarung (German) Johann Gottlieb Fichte 64 downloads
- Thoughts on the Christian Religion, by a Deist Anonymous 59 downloads
- The Cradle of the Christ: A Study in Primitive Christianity Octavius Brooks Frothingham 55 downloads
- Antikristus: Arvostelukoe kristinopista (Finnish) Friedrich Wilhelm Nietzsche 32 downloads
- Christian Mystery: A Chinese Tale, Found in the Portfolio of a Portuguese Friar Anonymous 25 downloads