Many people have found The People's Bible to be the most reliable Bible commentary series published. It's the laypeople's Bible--down to earth, clearly written, easy to read and understand, filled with practical and contemporary applications. Each volume includes that book's complete text from the NIV Bible. The Christ-centered commentaries following the Scripture sections contain explanations of the text, historical background, maps, illustrations, and archaeological information. The People's Bible commentaries are great for personal or group study.
Most believe that the gospel of Mark was the first of the gospels to be completed. Many also believe that Mark wrote down what Peter proclaimed. It is a gospel of action; Jesus does things. In addition, the gospel asserts that Jesus is the Son of God and spends a great deal of time with the last journey of Jesus to Jerusalem and the Savior's suffering and death there.