(MOTHERJONES) — Catherine Bracy moved to San Francisco from Chicago during the 2012 campaign to run Team Obama’s technology field office, a first-of-its-kind project that enlisted Silicon Valley’s whiz-kid engineers to build software for the campaign. (That tech savvy, of course, played a pivotal role in Obama’s victory.)

What struck Bracy about the tech-crazed Bay Area, she recounted Thursday in a talk at the Personal Democracy Forum tech conference, was the jarring inequality visible everywhere in Silicon Valley—between rich and poor, between men and women, between white people and, well, everyone else.

Bracy’s talk featured some eye-popping charts on Silicon Valley’s race and gender divide. Here are three of them.

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