Linchpin by Seth Godin

Decision Points by George W. Bush

Made to Stick by Chip and Dan Heath

Awesomely Simple by John Spence

Getting Change Right by Seth Kahan 

How The Mighty Fall by Jim Collins

Fathered by God by John Eldredge

Multipliers by Liz Wiseman

The Answer to How is Yes by Peter Block

Switch by Chip and Dan Heath

With Purpose:  Going From Success to Significance in Work and Life by Ken Dychtwald

The Flip Side:  Break Free of the Behaviors That Hold You Back by Flip Flippen

Your Next Move by Michael Watkins