Having grown up in an evangelical, Anglican clergy family, studied Biblical Studies at university, taught Alpha courses and led various Christian basics groups, I have been finding Tom Wright's work, which I have arrived at only recently, thoroughly earth-shaking.
Simply Jesus is no exception.
Readers might have to drop some assumptions. If your Christian faith has an add-on pack which says, "When you read the Bible, especially the bits about Jesus, you must believe x, y and z about it, or you're not a real Christian" then you might have trouble with Tom Wright's thinking.
However. If you're prepared to let the New Testament, and the world in which it was written (about which Wright is a world authority and all-around genius), speak for itself, you're in for a treat. And a world-view altering one at that. Why did Jesus have to die? Wright's answer is unexpected - revolutionary - but convincing.
Wright talks about the clash of three forces: the all-powerful Roman Empire, the immanent expectations of 1st century Jewish people that God is about to rescue them from Rome (based on their understanding of their scriptures), and the redemptive creation purposes of Israel's God: purposes that redefine the Jewish covenant hopes of God's arrival as redemptive ruler of a new earth into one man: Jesus the Messiah.
Wright concludes: Jesus is in charge of the earth, now, and he wants to run it through us (the Church). But how? What does Wright say we should do about it? Answer: Initiate and multiply Kingdom-like, Beatitude-inspired projects. And remind the powers (governments, etc) that Jesus is Lord, and that he is calling them to account for their rule.
The final chapter, where he answers his own "What now?" question, is where I found the book slightly disappointing. Wright's conclusions about implementing Jesus' rule do not have the same awesome sense of Old Testament/New Testament/Ancient world/Jesus integration that he achieves in the main body of the book (in my opinion!). Work in progress?