Comment by jongold

We haven't written nearly as much as we'd like, but here are some you might like:

Design Ops (the org that contains my team - Design Tools) - http://airbnb.design/designops-airbnb/

The Way We Build (head of design @alexoid talking about our process) - http://airbnb.design/the-way-we-build/

Building a Visual Language (on our design system) http://airbnb.design/building-a-visual-language/