What is the “New Perspective on Paul” and is it biblical according to Reformed Protestants?

I understand that N.T. Wright, an Anglican Bishop, has been promoting this teaching in evangelical churches. [*Source*](https://en.wikipedia.org/wiki/N._T._Wright) >According to Wright, "Paul in the twentieth century, then, has been used and abused much as in the first. Can we, as the century draws towards its close, listen a bit more closely to him? Can we somehow repent of the ways we have mishandled him and respect his own way of doing things a bit more?" Sounds eminently reasonable to me. However, after reading [this section](https://en.wikipedia.org/wiki/N._T._Wright#Views) re on his theological views, I found myself somewhat confused, and so I would appreciate a simplified summary of what he says about Justification, Righteousness, Covenant and works of the Law. [This article](https://www.gotquestions.org/New-Perspective-Paul.html) from the *GotQuestions* website presents arguments against the New Perspective on Paul, as does John Piper's 2007 book [The Future of Justification: A Response to N. T. Wright](https://www.amazon.com/gp/product/1581349645) . I understand that Wright has addressed the issue of Justification in his 2009 book [*Justification: God’s Plan and Paul's Vision*](https://www.amazon.com/dp/0830851399) , but I do not have access to it. A very brief summary of his reply can be read in a [2009 interview by Trevin Wax](https://www.thegospelcoalition.org/blogs/trevin-wax/interview-with-nt-wright-responding-to-piper-on-justification/) , where he refers the reader to a fuller response in his book [Paul: In Fresh Perspective](https://www.amazon.com/dp/0800663578) .