Start with high-confidence style & image books, then narrow by subgenre or adjacent topics.
The Conscious Closet
Elizabeth L. Cline, Penguin Audio
The Style Thesaurus
Hannah Kane
How to Get Dressed
Alison Freer
The Curated Closet
Anuschka Rees
Why French Women Wear Vintage
Alois Guinut
Wear It Well
Allison Bornstein