okay, i only read a third of this, and i feel i cannot rate it sensibly, because for me personally it was abandoned at two stars (i got stressed thinking i'd have to remember all of it when i could feel it overstuffing my brain; i started imagining situations in which i would have to determine like, what breathing patterns to lead my wife in when as her Breath Leader (tm), which positions would work best for causing changes in the pelvic basin, how do i know if she needs changes in the pelvic basin, maybe i'll have to RUPTURE HER MEMBRANES????? and then to be honest also imagining myself trying to juggle this mentally to discern whether i thought the actual medical provider was doing their job right or if i should, as at a dance, CUT IN)
BUT i think it would be terrific if actual medical providers read this, maybe all obgyns, midwives, delivery nurses, doulas, things of that nature, and for them, i must award five stars, because the breadth of detail and attention is absolutely, as you may have guessed, massive. i feel like you could read this in lieu of going to med school and assuming you have good knowledge retention probably i'd trust you more.
then again, i've only read a third of it, so it could go rapidly downhill. however, every boomer and and gen-xer i know who had like, a home birth, or a Blissful birth, told me urgently to read it, so i think it's probably consistent throughout.