There are many ways to learn nonviolent communication, how did you learn it?
I think Ustice is talking about three books. In that case, an answer could be “through the book Nonviolent Communication.” You are probably asking for more detail than that, though.
The question isn’t “which ways are out there to learn NVC” but which way actually resulted in him learning NVC in the way that got him those results.
There are many ways to learn nonviolent communication, how did you learn it?
I think Ustice is talking about three books. In that case, an answer could be “through the book Nonviolent Communication.” You are probably asking for more detail than that, though.
The question isn’t “which ways are out there to learn NVC” but which way actually resulted in him learning NVC in the way that got him those results.