Start with high-confidence sustainable development books, then narrow by subgenre or adjacent topics.
Fashionopolis
Dana Thomas
Your Essential Guide to Sustainable Investing
Larry E. Swedroe, Samuel C. Adams
Greener Marketing
John Grant, John T. Grant
Sustainability Marketing
Frank-Martin Belz, Ken Peattie
America's Most Sustainable Cities and Regions
John W. W. Day, Charles Hall
Thinking in Systems
Donella Meadows, Diana Wright
Doughnut Economics
Kate Raworth
Dirtbag Billionaire
David Gelles
Finding Lights in a Dark Age
Chris Smaje
Scaling Impact
Kusisami Hornberger