Mark - Introduction

The book doesn't actually state who wrote it, but right from the earliest times in church history it was attributed to John Mark, who is mentioned in Acts (eg Acts 12:12,25,27). Mark worked closely with the apostle Peter, and the gospel is based on Peter's experience of Jesus, possibly based on Peter's preaching, and arranged by Mark. 

The date of the gospel is placed at various times from the 40's AD to just before the destruction of Jerusalem in AD70. When we speak of dates for gospels it is important to remember that the material the gospel is based upon comes from earlier times, often eye witnesses of Jesus.

The gospel was probably written in Rome and for Roman or at least Gentile Christians. There are several occasions where Mark explains Jewish customs.

Mark is the shortest of the gospels, and almost all of Mark us found in the other synoptic gospels. 

The shortness and directness of Mark is perhaps reflective of Peter's character! As with all the gospels there is an emphasis on the cross. There are important teachings on discipleship, and Jesus' wider teachings. The destruction of Jerusalem receives an important section (chapter 13). Jesus as Messiah and Son of God are important too.