4.0

On the one hand, this book falls into all of the classic business book blunders. It's twice as long as it needs to be. It has cutesy acronyms for subsection 3 of the second part of the second overall point. The case studies are excruciatingly hand-crafted.

On the other hand, I've thought about this book every day since I finished it. It's affected how I talk to my coworkers, my spouse, and my kids. I know I will come back to it over and over.

Recommended for everyone who has to communicate. Which is everyone.