This is a good book, and I wanted to rate it higher, but the story of Flynn's life after the IWW isn't terribly interesting. It's mostly about the machinations inside the American Communist Party. The author had access to Flynn's notes, so it has an advantage over her autobiography, which ends not too long after the IWW years, and in that way it's valuable, though for me, she didn't show the same leadership during those years and became more of a secondary figure.
Flynn deserves to be more well known, and I'm sure that it's the political bias against communism in the US that keeps her from being seen as more of a heroine.