I don‘t think it gets much more thorough than this biography. I listened while reading Mantel‘s The Mirror and the Light. Cromwell had a whirlwind sort of reign as Henry VIII‘s primary and closest advisor. So much happened. Most is in Mantel. Extra here are the details, the zillion names he worked with, the Evangelical revolution that he pushed under H8‘s unwitting nose (in detail), and exploration of his true character and uncontainable anger.