I Found God in Soviet Russia, by John Noble, is a 192 page book telling the story of a man who spent ten years imprisoned for his faith.
The Answer to Moscow's Bible
A Ransom for Wurmbrand
The Torchlighters: The Samuel Morris Story
All the Paths of the Lord are Mercy and Truth
The Torchlighters: The Jim Elliot Story
The Answer to the Atheist's Handbook