* The Fearless Organization: Creating High-Performance Cultures Infernal Business Environments (2009)
* The Culture Code: The Secrets of Highly Successful Groups (2018)
* Leading the Fearless Organization: Creating High-Performance Cultures That Thrive on Change (2019)
Martelli's work focuses on the importance of culture in creating successful organizations. He argues that companies that have a strong culture are more likely to be successful than those that do not. He has developed a framework for creating a fearless culture that allows companies to thrive in even the most challenging business environments.