Books about Christianity -- Controversial literature (sorted by popularity)
- The Profits of Religion, Fifth Edition Upton Sinclair 89 downloads
- The Story of My Mind; Or, How I Became a Rationalist M. M. Mangasarian 85 downloads
- Versuch einer Kritik aller Offenbarung (German) Johann Gottlieb Fichte 81 downloads
- Christianity in relation to Freethought, Scepticism, and Faith Charles Bradlaugh and William Connor Magee 75 downloads
- Ingersoll in Canada: A Reply to Wendling, Archbishop Lynch, Bystander; and Others Allen Pringle 74 downloads
- The Cradle of the Christ: A Study in Primitive Christianity Octavius Brooks Frothingham 63 downloads
- Thoughts on the Christian Religion, by a Deist Anonymous 61 downloads
- Antikristus: Arvostelukoe kristinopista (Finnish) Friedrich Wilhelm Nietzsche 56 downloads
- The Doubts of Infidels William Nicholson 54 downloads
- Christian Mystery: A Chinese Tale, Found in the Portfolio of a Portuguese Friar Anonymous 44 downloads