This document provides an overview of the works and theology of Justin Martyr from the 2nd century AD. It summarizes his two Apologies addressed to Emperor Antoninus Pius, in which he defended Christians against accusations of being atheists and criminals. Justin argued that Christians were not a political threat and that Roman gods were actually demons. The document also examines Justin's use of the Logos theology to explain Christology, depicting Jesus as the Logos who was with the Father from all eternity.