4.0

Perhaps most useful as an introduction to workplace norms for new adults, though of course, there are workers of all ages would would benefit from some of its advice.

(You can quibble with some of the specific details, as I think some of the advice breaks down in certain circumstances. For example, it's great to have a can-do, solution-oriented attitude, but sometimes concerns about capacity are entirely valid. It's less about "I can't do X" than "I can't do X while I'm doing items A, B, C, ..." That said, the concept of being "emotionally expensive" at work is a great one to have in your back pocket.)