"Five Dysfunction of a Team" written in a story format very easy and fun to read.

The Five Dysfunctions of a Team

Here's the author talking about his book

https://www.youtube.com/watch?v=O5EQW026alY

Dare to Lead is Brene Brown's leadership book

Her famous ted talk about vulnerability

https://www.youtube.com/watch?v=iCvmsMzlF7o

She has a free podcast also

Unlocking Us | Brené Brown