Gospel of Mark

The Gospel According to Mark (Greek: τὸ κατὰ Μᾶρκον εὐαγγέλιον, to kata Markon euangelion), the second book of the New Testament, is one of the four canonical gospels and one of the three synoptic gospels. It tells of the ministry of Jesus from his baptism by John the Baptist to his death and burial and the discovery of the empty tomb -- there is no genealogy of Jesus or birth narrative, nor, in the original ending at chapter 16, any post-resurrection appearances. It portrays Jesus as a heroic man of action, an exorcist, a healer, and a miracle worker. Jesus is also the Son of God, but he keeps his identity secret, concealing it in parables so that even the disciples fail to understand. All this is in keeping with prophecy, which foretold the fate of the messiah as suffering servant. The gospel ends, in its original version, with the discovery of the empty tomb, a promise to meet again in Galilee, and an unheeded instruction to spread the good news of the resurrection.

Question: is the book of mark in the new testament
Answer: yes