The field of health literacy has evolved from early efforts that focused on individuals to its current recognition that health literacy is a multidimensional team and system function. Health literacy includes system demands and complexities as well as individual skills and abilities. While communicating in a health-literate manner is truly important for everyone, it can be especially important for those with mental or behavioral health issues and for the systems and teams that interact with them and treat these individuals. The purpose of the workshop, which was held on July 11, 2018, in Washington, DC, was to explore issues associated with effective communication with individuals with mental or behavioral health issues and to identify ways in which health literacy approaches can facilitate communication. In particular, the workshop aimed to gain a better understanding of how behavioral health and mental health concerns can adversely affect communications between providers and patients and their families. This publication summarizes the presentations and discussions from the workshop.