Educators serving students who are deaf or hard of hearing (DHH) serve a population that is heterogeneous. Deaf education teacher preparation programs cannot address all of the knowledge and skills deaf educators will need to be effective teachers. Yet DHH-specific professional development (PD) is limited and often difficult to locate. The purpose of this study was to obtain information about how teachers of students who are deaf or hard of hearing in Texas locate DHH-specific PD, their perception of the usefulness of the pre-service and in-service training they have received in 15 DHH-specific knowledge and skills topics, and how a digital badging initiative might influence deaf educators' participation in PD and professional learning activities. A survey addressing these questions was shared with deaf educators throughout the state of Texas. The resulting data were analyzed using descriptive statistics. The findings indicate that the learning needs of deaf educators and the PD format they prefer are as heterogeneous as the students they serve. Building a culture that encourages educators of students who are deaf or hard of hearing to take charge of their learning needs could assist training providers at the pre-service and in-service levels to better support those educators in personalizing their professional development. Digital badges could provide in-service providers with a potential framework when addressing the individual learning needs of deaf educators. The study did not elicit enough data in support of or to rule out the use of digital badges as a framework for personalizing PD. This is a topic that could be considered for future research to add to the limited research on professional development for deaf educators. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]