Simon Sinek, Author, Start with Why and Together is Better: A Little Book of Inspiration; Twitter @simonsinek

Sinek's newest book, Together is Better, is a celebration of that simple human idea that we are better when we help each other than we are when we work alone.

Too often, we avoid asking for help when we need it or refuse to accept it when it’s offered for fear that it will make us look weak or put us or our job at risk. We often keep self-doubt to ourselves instead of turning to someone we trust for inspiration.

Together is Better has combined some of Sinek’s favorite quotes, amazing illustrations, storytelling and commentary. In the simplest way possible, Sinek reminds us what it means to be a leader, the courage it takes to ask for help and the value of working together. It is a story that illustrates the need for leaders to foster environments in which trust and cooperation can thrive.

Sinek, the best selling author of Start with Why and Leaders Eat Last, has taught companies and employees around the world how to inspire people. He is known for popularizing the concept of “Why,” and his TED talk is the third most-watched presentation with more than 27 million views.