Bit cliche, fluffed up and content could be summarized in a blog post. Main premise is that people are goal/work oriented (red), or self-oriented (yellow), team players (green) or analytical (blue) or combination of those.
You should adjust yourself both as an employee or as a boss to better communicate. Not a novel concept in the slightest.

I also found the writing style bit annoying. Gives early 2000s self-help book.