This is a great document outlining the communication principles followed by GitHub Engineering. I’d say this is broadly applicable to teams and organizations—not just Engineering. I love this point about making work visible:

Capturing and exposing processes through URLs also helps make your work more visible. So work in the open and proactively share your work to the widest extent practical. As we continue to grow as an organization, points of collaboration will become even more important as we try to reduce redundant work. Avoid hoarding information: Like in any production system, observability is key. And if you make something useful, find a way to make it available so others can benefit from it too.