Start with high-confidence ya nonbinary & genderqueer books, then narrow by subgenre or adjacent topics.
LGBTQ
Kelly Huegel Madrone
The Trans Self-care Workbook
Theo Lorenz
The Trans Survival Workbook
Owl Fisher, Fox Fisher
The Awesome Autistic Guide for Trans Teens
Yenn Purkis, Sam Rose
Am I Trans Enough?
Alo Johnston
Traversing Gender
Lee Harrington
