My Answer to the Moscow Atheists, by Richard Wurmbrand, is a 213 page book conceived in solitary confinement, presenting a case for belief in God.
The Torchlighters: The Jim Elliot Story
With God In Solitary Confinement
Jesus Freaks
The Torchlighters: The Adoniram and Ann Judson Story
The Torchlighters: The Samuel Morris Story
The Pastor's Wife