Start with high-confidence fashion & textiles business books, then narrow by subgenre or adjacent topics.
The Kingdom of Prep
Maggie Bullock
Deluxe
Dana Thomas
The Perfect Scent
Chandler Burr
American Flannel
Steven Kurutz
Making It in America
Rachel Slade
They All Came to Barneys
Gene Pressman
Almost Reckless
Amy Smilovic
Fashionopolis
Fashion Forecasting
Lorynn Divita
In Fashion
Sheryl A. Farnan, Elaine Stone
The Dynamics of Fashion
Elaine Stone, Sheryl A. Farnan
The Why of the Buy
Patricia Mink Rath, Stefani Bay
The Fabric of Civilization
Virginia Postrel
Overdressed
Elizabeth L. Cline
Fashion Design
Denis Antoine
Little Book of Fendi
Laia Farran Graves
Little Book of Chloé
Caroline Young
Bigger Than Fashion
Tyler Watamanuk