+1 on "Nonviolent Communication" - if anyone is interested I have some directive like notes from the book here https://blog.abuiles.com/reading-feed/nonviolent-communicati... -- going through the book is important for the context but this can give you a quick overview of what it is about.
Other books in my list are:
- Punished by rewards by Alfie Kohn
- On the shortness of life by Seneca