I am the only woman in this transmission shop and my coworkers still introduce me to customers as the secretary even though I have more certifications than any of them.
More people experience this than they realize.
You're the most qualified person in the shop, but they still introduce you as the secretary because you're a woman.
“Where Are You with Trades — Automotive & Vehicle Repair?”
If this sounds familiar, the Library can help you find the bigger picture.