Fonrobert's work here is amazing, although you have to already care a lot about Niddah, Talmud, and criticism.
There are a few things that stood out to me - 
1) The rabbis as priests and niddah as tzaraat insight was transformative.
2) The way Hargasha is often taught as opposed to the way Fonrobert reads it and the shift in understanding ״כח דהתירא״ as not really being about "making things permissible" but about the locus of power for who can do so.
3) What is the job and obligation of women rabbis in this discourse about (that displaces) women?

Also, incredibly readable by academische standards.