This introductory study of the Gospel of Mark is designed to help readers understand its content, structure, and theological message within the context of the New Testament. The author presents the Gospel of Mark as a simple yet powerful narrative, emphasizing Jesus' authoritative actions and ministry, particularly through his miracles and teaching. The author highlights the central theme of Jesus as the suffering Messiah and the disciples' limitations in understanding his identity and mission. The book also examines the background to the writing of Mark's Gospel, including its possible relationship to the tradition of the apostle Peter and the situation of the early Christian community. This work serves as a basic guide to understanding the Gospel of Mark, both historically and theologically, and its relevance to the life of Christian faith.