Frank Peretti is an American author known for his works in the Christian fiction genre. He gained popularity in the late 1980s and early 1990s with his novels, particularly This Present Darkness and Piercing the Darkness, which explore themes of spiritual warfare and the battle between good and evil. Peretti's writing often combines elements of suspense, fantasy, and theology, making his books appealing to a wide audience. He has also written several other novels, as well as non-fiction works, and has been influential in shaping contemporary Christian literature.