Robert Kegan and Lisa Laskow Lahey's Immunity to Change details their research on adult development and its impact on organizational change. 

Their research reveals three distinct levels of mental complexity in adults, impacting how individuals and teams approach challenges. 

The authors introduce the concept of "immunity to change," a dynamic in which individuals unknowingly prevent their desired changes. They offer a four-column framework to diagnose and overcome these ingrained patterns.

The book uses case studies from various organizations to illustrate how this framework can be applied to individual and group settings, fostering personal growth and improved organizational performance. 

Ultimately, the book argues that significant adult change is possible and vital for meeting modern organizational challenges.