What books of the Bible did Mark write?

Answer 1

Mark, who was mentioned by Paul in his epistles, is credited with writing the gospel that now bears his name. However, all the New Testament gospels were originally anonymous until attributed to the persons whose names they now bear, later in the second century.

In fact, there is no good reason that Mark wrote any book in The Bible. He was probably already dead by the time Mark's Gospel was written, in 70 CE.

Answer 2

The apostle Mark wrote the Book of Mark in the New Testament.