I am recommending "Deluxe: How Luxury Lost Its Luster" by Dana Thomas. I have not read it, because as I write this it is not yet released, but I heard an interview on the radio that had me tut-tutting and clucking and shaking my head in shame. It sounds reminiscent of "Fast Food Nation," the watershed book that made us push back our collective Big Mac and soured us to the marrow on fast food culture.
Most of us could give a fuck about the goings on of high fashion, but the telling really rubs the gloss right off those shiny magazines. Revelations about factory conditions, market consolidation, and overall business practices designed to screw you out of lots of money are quite enlightening. It's modern simony and there is no shortage of buffoons to buy $1,500 sunglasses, no doubt it will be a good read.
