While there is a growing interest among teachers to embed Mind, Brain, and Education (MBE) knowledge in their practice, most are still not clear about the key concepts in the field that have the potential to improve their pedagogical knowledge. The present study was conducted to identify the domains of current MBE knowledge that are important for teachers to know. Using a deductive qualitative survey design, data were collected by an online questionnaire from 112 experts of the global MBE community. Findings indicated that there are at least 18 conceptual areas of MBE literacy that "need" to be "included in" teacher professional development programs.